872309387124 has 36 divisors (see below), whose sum is σ = 2520004896864. Its totient is φ = 249231253392.

The previous prime is 872309387083. The next prime is 872309387137. The reversal of 872309387124 is 421783903278.

872309387124 is a `hidden beast` number, since 8 + 7 + 230 + 9 + 387 + 1 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1730772342 + ... + 1730772845.

It is an arithmetic number, because the mean of its divisors is an integer number (70000136024).

Almost surely, 2^872309387124 is an apocalyptic number.

872309387124 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

872309387124 is an abundant number, since it is smaller than the sum of its proper divisors (1647695509740).

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

872309387124 is a wasteful number, since it uses less digits than its factorization.

872309387124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461545204 (or 3461545199 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 872309387124 in words is "eight hundred seventy-two billion, three hundred nine million, three hundred eighty-seven thousand, one hundred twenty-four".