115206910728 has 64 divisors (see below), whose sum is σ = 354482808960. Its totient is φ = 30384239616.

The previous prime is 115206910699. The next prime is 115206910757. The reversal of 115206910728 is 827019602511.

It is an interprime number because it is at equal distance from previous prime (115206910699) and next prime (115206910757).

It is a super-2 number, since 2×115206910728² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 115206910728.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26373025 + ... + 26377392.

It is an arithmetic number, because the mean of its divisors is an integer number (5538793890).

Almost surely, 2^115206910728 is an apocalyptic number.

It is an amenable number.

115206910728 is an abundant number, since it is smaller than the sum of its proper divisors (239275898232).

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

115206910728 is a wasteful number, since it uses less digits than its factorization.

115206910728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52750446 (or 52750442 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 115206910728 in words is "one hundred fifteen billion, two hundred six million, nine hundred ten thousand, seven hundred twenty-eight".