115621046772 has 96 divisors (see below), whose sum is σ = 345442836480. Its totient is φ = 29219771520.

The previous prime is 115621046747. The next prime is 115621046773. The reversal of 115621046772 is 277640126511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115621046773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1656772 + ... + 1725147.

It is an arithmetic number, because the mean of its divisors is an integer number (3598362880).

Almost surely, 2^115621046772 is an apocalyptic number.

115621046772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115621046772 is an abundant number, since it is smaller than the sum of its proper divisors (229821789708).

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

115621046772 is a wasteful number, since it uses less digits than its factorization.

115621046772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381981 (or 3381979 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 115621046772 in words is "one hundred fifteen billion, six hundred twenty-one million, forty-six thousand, seven hundred seventy-two".