823972412952 has 96 divisors (see below), whose sum is σ = 2478418117200. Its totient is φ = 253529961984.

The previous prime is 823972412899. The next prime is 823972412959. The reversal of 823972412952 is 259214279328.

823972412952 is a `hidden beast` number, since 8 + 2 + 397 + 241 + 2 + 9 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823972412959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11249553 + ... + 11322560.

Almost surely, 2^823972412952 is an apocalyptic number.

It is an amenable number.

823972412952 is an abundant number, since it is smaller than the sum of its proper divisors (1654445704248).

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

823972412952 is a wasteful number, since it uses less digits than its factorization.

823972412952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22572154 (or 22572131 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 823972412952 in words is "eight hundred twenty-three billion, nine hundred seventy-two million, four hundred twelve thousand, nine hundred fifty-two".