476521946939 has 4 divisors (see below), whose sum is σ = 476666394600. Its totient is φ = 476377499280.

The previous prime is 476521946897. The next prime is 476521946993. The reversal of 476521946939 is 939649125674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-476521946939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (476521946239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72218882 + ... + 72225479.

It is an arithmetic number, because the mean of its divisors is an integer number (119166598650).

Almost surely, 2^476521946939 is an apocalyptic number.

476521946939 is a deficient number, since it is larger than the sum of its proper divisors (144447661).

476521946939 is a wasteful number, since it uses less digits than its factorization.

476521946939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144447660.

The product of its digits is 88179840, while the sum is 65.

The spelling of 476521946939 in words is "four hundred seventy-six billion, five hundred twenty-one million, nine hundred forty-six thousand, nine hundred thirty-nine".