479538317851 has 16 divisors (see below), whose sum is σ = 492078948480. Its totient is φ = 467099043840.

The previous prime is 479538317809. The next prime is 479538317861. The reversal of 479538317851 is 158713835974.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479538317851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 479538317851.

It is not an unprimeable number, because it can be changed into a prime (479538317801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11448835 + ... + 11490643.

It is an arithmetic number, because the mean of its divisors is an integer number (30754934280).

Almost surely, 2^479538317851 is an apocalyptic number.

479538317851 is a deficient number, since it is larger than the sum of its proper divisors (12540630629).

479538317851 is a wasteful number, since it uses less digits than its factorization.

479538317851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43014.

The product of its digits is 25401600, while the sum is 61.

The spelling of 479538317851 in words is "four hundred seventy-nine billion, five hundred thirty-eight million, three hundred seventeen thousand, eight hundred fifty-one".