869302393981 has 16 divisors (see below), whose sum is σ = 1005618931200. Its totient is φ = 736034606208.

The previous prime is 869302393961. The next prime is 869302393987. The reversal of 869302393981 is 189393203968.

It is a cyclic number.

It is not a de Polignac number, because 869302393981 - 2²⁹ = 868765523069 is a prime.

It is a super-2 number, since 2×869302393981² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869302393987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24190 + ... + 1318783.

It is an arithmetic number, because the mean of its divisors is an integer number (62851183200).

Almost surely, 2^869302393981 is an apocalyptic number.

It is an amenable number.

869302393981 is a deficient number, since it is larger than the sum of its proper divisors (136316537219).

869302393981 is a wasteful number, since it uses less digits than its factorization.

869302393981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344108.

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 869302393981 in words is "eight hundred sixty-nine billion, three hundred two million, three hundred ninety-three thousand, nine hundred eighty-one".