869253947924 has 24 divisors (see below), whose sum is σ = 1610704928448. Its totient is φ = 409053444480.

The previous prime is 869253947843. The next prime is 869253947929. The reversal of 869253947924 is 429749352968.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869253947929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7508987 + ... + 7623869.

It is an arithmetic number, because the mean of its divisors is an integer number (67112705352).

Almost surely, 2^869253947924 is an apocalyptic number.

It is an amenable number.

869253947924 is a deficient number, since it is larger than the sum of its proper divisors (741450980524).

869253947924 is a wasteful number, since it uses less digits than its factorization.

869253947924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226175 (or 226173 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 68.

The spelling of 869253947924 in words is "eight hundred sixty-nine billion, two hundred fifty-three million, nine hundred forty-seven thousand, nine hundred twenty-four".