478737511938 has 96 divisors (see below), whose sum is σ = 1289101267584. Its totient is φ = 125256761856.

The previous prime is 478737511937. The next prime is 478737511961. The reversal of 478737511938 is 839115737874.

478737511938 is a `hidden beast` number, since 4 + 7 + 87 + 3 + 7 + 511 + 9 + 38 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (478737511937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2941020 + ... + 3099527.

It is an arithmetic number, because the mean of its divisors is an integer number (13428138204).

Almost surely, 2^478737511938 is an apocalyptic number.

478737511938 is an abundant number, since it is smaller than the sum of its proper divisors (810363755646).

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

478737511938 is a wasteful number, since it uses less digits than its factorization.

478737511938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040616 (or 6040613 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 478737511938 in words is "four hundred seventy-eight billion, seven hundred thirty-seven million, five hundred eleven thousand, nine hundred thirty-eight".