838475038864 has 40 divisors (see below), whose sum is σ = 1664272542240. Its totient is φ = 408986630400.

The previous prime is 838475038813. The next prime is 838475038897. The reversal of 838475038864 is 468830574838.

It is a junction number, because it is equal to n+sod(n) for n = 838475038796 and 838475038805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14462767 + ... + 14520625.

It is an arithmetic number, because the mean of its divisors is an integer number (41606813556).

Almost surely, 2^838475038864 is an apocalyptic number.

It is an amenable number.

838475038864 is a deficient number, since it is larger than the sum of its proper divisors (825797503376).

838475038864 is a wasteful number, since it uses less digits than its factorization.

838475038864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79999 (or 79993 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 64.

The spelling of 838475038864 in words is "eight hundred thirty-eight billion, four hundred seventy-five million, thirty-eight thousand, eight hundred sixty-four".