102791728940 has 24 divisors (see below), whose sum is σ = 221127574752. Its totient is φ = 40113845120.

The previous prime is 102791728927. The next prime is 102791728979. The reversal of 102791728940 is 49827197201.

It is a super-2 number, since 2×102791728940² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62677064 + ... + 62678703.

It is an arithmetic number, because the mean of its divisors is an integer number (9213648948).

Almost surely, 2^102791728940 is an apocalyptic number.

102791728940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102791728940 is an abundant number, since it is smaller than the sum of its proper divisors (118335845812).

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

102791728940 is a wasteful number, since it uses less digits than its factorization.

102791728940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125355817 (or 125355815 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 102791728940 in words is "one hundred two billion, seven hundred ninety-one million, seven hundred twenty-eight thousand, nine hundred forty".