862647644420364 has 48 divisors (see below), whose sum is σ = 2200901569534080. Its totient is φ = 260804662583040.

The previous prime is 862647644420347. The next prime is 862647644420381. The reversal of 862647644420364 is 463024446746268.

It is an interprime number because it is at equal distance from previous prime (862647644420347) and next prime (862647644420381).

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 862647644420295 and 862647644420304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7546374054 + ... + 7546488365.

It is an arithmetic number, because the mean of its divisors is an integer number (45852116031960).

Almost surely, 2^{862647644420364} is an apocalyptic number.

It is an amenable number.

862647644420364 is an abundant number, since it is smaller than the sum of its proper divisors (1338253925113716).

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

862647644420364 is a wasteful number, since it uses less digits than its factorization.

862647644420364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15092862870 (or 15092862868 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 66.

The spelling of 862647644420364 in words is "eight hundred sixty-two trillion, six hundred forty-seven billion, six hundred forty-four million, four hundred twenty thousand, three hundred sixty-four".