869293053844 has 6 divisors (see below), whose sum is σ = 1521262844234. Its totient is φ = 434646526920.

The previous prime is 869293053817. The next prime is 869293053847. The reversal of 869293053844 is 448350392968.

It can be written as a sum of positive squares in only one way, i.e., 856402176400 + 12890877444 = 925420^2 + 113538^2 .

It is a super-2 number, since 2×869293053844² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869293053847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108661631727 + ... + 108661631734.

Almost surely, 2^869293053844 is an apocalyptic number.

It is an amenable number.

869293053844 is a deficient number, since it is larger than the sum of its proper divisors (651969790390).

869293053844 is a wasteful number, since it uses less digits than its factorization.

869293053844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217323263465 (or 217323263463 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 61.

The spelling of 869293053844 in words is "eight hundred sixty-nine billion, two hundred ninety-three million, fifty-three thousand, eight hundred forty-four".