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426078813380 = 2251141611674637
BaseRepresentation
bin1100011001101000100…
…01101011110011000100
31111201210011110100112212
412030310101223303010
523440102134012010
6523423215402552
742532426104623
oct6146421536304
91451704410485
10426078813380
11154776422930
126a6b0b23458
1331243517c6c
141689d9316ba
15b13b169505
hex633446bcc4

426078813380 has 192 divisors, whose sum is σ = 1022613548544. Its totient is φ = 147758592000.

The previous prime is 426078813343. The next prime is 426078813389. The reversal of 426078813380 is 83318870624.

It is a super-2 number, since 2×4260788133802 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (426078813389) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91884422 + ... + 91889058.

It is an arithmetic number, because the mean of its divisors is an integer number (5326112232).

Almost surely, 2426078813380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426078813380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511306774272).

426078813380 is an abundant number, since it is smaller than the sum of its proper divisors (596534735164).

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

426078813380 is a wasteful number, since it uses less digits than its factorization.

426078813380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926 (or 4924 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 426078813380 in words is "four hundred twenty-six billion, seventy-eight million, eight hundred thirteen thousand, three hundred eighty".