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26197893120 = 213357219229
BaseRepresentation
bin11000011001100001…
…000010000000000000
32111121202221212020210
4120121201002000000
5412123130034440
620011331434120
71615131263100
oct303141020000
974552855223
1026197893120
1110124033943
1250b1755940
132616770a09
1413a74c9200
15a34e43a80
hex619842000

26197893120 has 672 divisors, whose sum is σ = 103094942400. Its totient is φ = 5648154624.

The previous prime is 26197893119. The next prime is 26197893149. The reversal of 26197893120 is 2139879162.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 26197893120.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114401166 + ... + 114401394.

Almost surely, 226197893120 is an apocalyptic number.

26197893120 is a gapful number since it is divisible by the number (20) 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 26197893120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51547471200).

26197893120 is an abundant number, since it is smaller than the sum of its proper divisors (76897049280).

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

26197893120 is a wasteful number, since it uses less digits than its factorization.

26197893120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 26197893120 in words is "twenty-six billion, one hundred ninety-seven million, eight hundred ninety-three thousand, one hundred twenty".