838475038863 has 64 divisors (see below), whose sum is σ = 1580304768000. Its totient is φ = 435571395840.

The previous prime is 838475038813. The next prime is 838475038897. The reversal of 838475038863 is 368830574838.

It is a happy number.

838475038863 is a `hidden beast` number, since 8 + 3 + 8 + 47 + 503 + 8 + 86 + 3 = 666.

It is not a de Polignac number, because 838475038863 - 2²⁰ = 838473990287 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 838475038863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838475038813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4013506 + ... + 4217247.

It is an arithmetic number, because the mean of its divisors is an integer number (24692262000).

Almost surely, 2^838475038863 is an apocalyptic number.

838475038863 is a deficient number, since it is larger than the sum of its proper divisors (741829729137).

838475038863 is a wasteful number, since it uses less digits than its factorization.

838475038863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230794 (or 8230774 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 63.

The spelling of 838475038863 in words is "eight hundred thirty-eight billion, four hundred seventy-five million, thirty-eight thousand, eight hundred sixty-three".