869362803855 has 128 divisors (see below), whose sum is σ = 2002311628800. Its totient is φ = 347543903232.

The previous prime is 869362803847. The next prime is 869362803887. The reversal of 869362803855 is 558308263968.

869362803855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 869362803855 - 2³ = 869362803847 is a prime.

It is a super-2 number, since 2×869362803855² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 869362803792 and 869362803801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1628854 + ... + 2095683.

It is an arithmetic number, because the mean of its divisors is an integer number (15643059600).

Almost surely, 2^869362803855 is an apocalyptic number.

869362803855 is an abundant number, since it is smaller than the sum of its proper divisors (1132948824945).

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

869362803855 is a wasteful number, since it uses less digits than its factorization.

869362803855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724590 (or 3724584 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 869362803855 in words is "eight hundred sixty-nine billion, three hundred sixty-two million, eight hundred three thousand, eight hundred fifty-five".