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26942301568 = 2771319236779
BaseRepresentation
bin11001000101111000…
…101110010110000000
32120112122200201200001
4121011320232112000
5420134212122233
620213243005344
71642440533110
oct310570562600
976478621601
1026942301568
1110476254a36
12527ab09854
132704a5b3a0
141438303040
15a7a48927d
hex645e2e580

26942301568 has 512 divisors, whose sum is σ = 74575872000. Its totient is φ = 9393905664.

The previous prime is 26942301559. The next prime is 26942301583. The reversal of 26942301568 is 86510324962.

It is a super-2 number, since 2×269423015682 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 341041753 + ... + 341041831.

It is an arithmetic number, because the mean of its divisors is an integer number (145656000).

Almost surely, 226942301568 is an apocalyptic number.

26942301568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26942301568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37287936000).

26942301568 is an abundant number, since it is smaller than the sum of its proper divisors (47633570432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26942301568 is a wasteful number, since it uses less digits than its factorization.

26942301568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 26942301568 in words is "twenty-six billion, nine hundred forty-two million, three hundred one thousand, five hundred sixty-eight".