115943517820 has 24 divisors (see below), whose sum is σ = 262210725504. Its totient is φ = 42809914176.

The previous prime is 115943517817. The next prime is 115943517841. The reversal of 115943517820 is 28715349511.

It is a congruent number.

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, 222968044 + ... + 222968563.

It is an arithmetic number, because the mean of its divisors is an integer number (10925446896).

Almost surely, 2^115943517820 is an apocalyptic number.

115943517820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115943517820 is an abundant number, since it is smaller than the sum of its proper divisors (146267207684).

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

115943517820 is a wasteful number, since it uses less digits than its factorization.

115943517820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445936629 (or 445936627 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 115943517820 in words is "one hundred fifteen billion, nine hundred forty-three million, five hundred seventeen thousand, eight hundred twenty".