869371819828 has 12 divisors (see below), whose sum is σ = 1522091304160. Its totient is φ = 434488590072.

The previous prime is 869371819819. The next prime is 869371819837. The reversal of 869371819828 is 828918173968.

869371819828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (869371819819) and next prime (869371819837).

It is a super-2 number, since 2×869371819828² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49320048 + ... + 49337671.

Almost surely, 2^869371819828 is an apocalyptic number.

It is an amenable number.

869371819828 is a deficient number, since it is larger than the sum of its proper divisors (652719484332).

869371819828 is a wasteful number, since it uses less digits than its factorization.

869371819828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98659926 (or 98659924 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 70.

The spelling of 869371819828 in words is "eight hundred sixty-nine billion, three hundred seventy-one million, eight hundred nineteen thousand, eight hundred twenty-eight".