479646321937 has 4 divisors (see below), whose sum is σ = 479667995620. Its totient is φ = 479624648256.

The previous prime is 479646321911. The next prime is 479646321991. The reversal of 479646321937 is 739123646974.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34789337361 + 444856984576 = 186519^2 + 666976^2 .

It is a cyclic number.

It is not a de Polignac number, because 479646321937 - 2⁷ = 479646321809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479646328937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10803612 + ... + 10847917.

It is an arithmetic number, because the mean of its divisors is an integer number (119916998905).

Almost surely, 2^479646321937 is an apocalyptic number.

It is an amenable number.

479646321937 is a deficient number, since it is larger than the sum of its proper divisors (21673683).

479646321937 is a wasteful number, since it uses less digits than its factorization.

479646321937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21673682.

The product of its digits is 41150592, while the sum is 61.

The spelling of 479646321937 in words is "four hundred seventy-nine billion, six hundred forty-six million, three hundred twenty-one thousand, nine hundred thirty-seven".