826393888964 has 24 divisors (see below), whose sum is σ = 1697457720000. Its totient is φ = 344596679136.

The previous prime is 826393888921. The next prime is 826393889021. The reversal of 826393888964 is 469888393628.

It is a Harshad number since it is a multiple of its sum of digits (74).

It is a junction number, because it is equal to n+sod(n) for n = 826393888891 and 826393888900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398837714 + ... + 398839785.

It is an arithmetic number, because the mean of its divisors is an integer number (70727405000).

Almost surely, 2^826393888964 is an apocalyptic number.

It is an amenable number.

826393888964 is an abundant number, since it is smaller than the sum of its proper divisors (871063831036).

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

826393888964 is a wasteful number, since it uses less digits than its factorization.

826393888964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797677547 (or 797677545 counting only the distinct ones).

The product of its digits is 859963392, while the sum is 74.

The spelling of 826393888964 in words is "eight hundred twenty-six billion, three hundred ninety-three million, eight hundred eighty-eight thousand, nine hundred sixty-four".