115729595440 has 40 divisors (see below), whose sum is σ = 269884275408. Its totient is φ = 46151973120.

The previous prime is 115729595431. The next prime is 115729595459. The reversal of 115729595440 is 44595927511.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2158747 + ... + 2211706.

Almost surely, 2^115729595440 is an apocalyptic number.

115729595440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115729595440 is an abundant number, since it is smaller than the sum of its proper divisors (154154679968).

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

115729595440 is a wasteful number, since it uses less digits than its factorization.

115729595440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370797 (or 4370791 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 52.

The spelling of 115729595440 in words is "one hundred fifteen billion, seven hundred twenty-nine million, five hundred ninety-five thousand, four hundred forty".