872021400032 has 24 divisors (see below), whose sum is σ = 1721116569816. Its totient is φ = 434912429952.

The previous prime is 872021400013. The next prime is 872021400043. The reversal of 872021400032 is 230004120278.

It is a super-2 number, since 2×872021400032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872021399968 and 872021400004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34308038 + ... + 34333445.

It is an arithmetic number, because the mean of its divisors is an integer number (71713190409).

Almost surely, 2^872021400032 is an apocalyptic number.

It is an amenable number.

872021400032 is a deficient number, since it is larger than the sum of its proper divisors (849095169784).

872021400032 is a wasteful number, since it uses less digits than its factorization.

872021400032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68641890 (or 68641882 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 872021400032 in words is "eight hundred seventy-two billion, twenty-one million, four hundred thousand, thirty-two".