115857828240 has 320 divisors, whose sum is σ = 467253522432. Its totient is φ = 23027558400.

The previous prime is 115857828197. The next prime is 115857828271. The reversal of 115857828240 is 42828758511.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 288750 + ... + 561330.

Almost surely, 2^115857828240 is an apocalyptic number.

115857828240 is a gapful number since it is divisible by the number (10) 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 115857828240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233626761216).

115857828240 is an abundant number, since it is smaller than the sum of its proper divisors (351395694192).

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

115857828240 is a wasteful number, since it uses less digits than its factorization.

115857828240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272638 (or 272632 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 51.

The spelling of 115857828240 in words is "one hundred fifteen billion, eight hundred fifty-seven million, eight hundred twenty-eight thousand, two hundred forty".