115185394040 has 64 divisors (see below), whose sum is σ = 272888956800. Its totient is φ = 43636171392.

The previous prime is 115185394019. The next prime is 115185394057. The reversal of 115185394040 is 40493581511.

It is a happy number.

It is a congruent number.

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, 2747879 + ... + 2789481.

It is an arithmetic number, because the mean of its divisors is an integer number (4263889950).

Almost surely, 2^115185394040 is an apocalyptic number.

115185394040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115185394040 is an abundant number, since it is smaller than the sum of its proper divisors (157703562760).

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

115185394040 is a wasteful number, since it uses less digits than its factorization.

115185394040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45276 (or 45272 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 115185394040 in words is "one hundred fifteen billion, one hundred eighty-five million, three hundred ninety-four thousand, forty".