477813731921 has 8 divisors (see below), whose sum is σ = 522240436224. Its totient is φ = 435200362560.

The previous prime is 477813731903. The next prime is 477813731959. The reversal of 477813731921 is 129137318774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 477813731921 - 2³⁸ = 202935824977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477813731221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453333185 + ... + 453334238.

It is an arithmetic number, because the mean of its divisors is an integer number (65280054528).

Almost surely, 2^477813731921 is an apocalyptic number.

It is an amenable number.

477813731921 is a deficient number, since it is larger than the sum of its proper divisors (44426704303).

477813731921 is a wasteful number, since it uses less digits than its factorization.

477813731921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906667471.

The product of its digits is 1778112, while the sum is 53.

The spelling of 477813731921 in words is "four hundred seventy-seven billion, eight hundred thirteen million, seven hundred thirty-one thousand, nine hundred twenty-one".