320487641464 has 16 divisors (see below), whose sum is σ = 600921483120. Its totient is φ = 160241912640.

The previous prime is 320487641447. The next prime is 320487641479. The reversal of 320487641464 is 464146784023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 686229 + ... + 1054459.

It is an arithmetic number, because the mean of its divisors is an integer number (37557592695).

Almost surely, 2^320487641464 is an apocalyptic number.

It is an amenable number.

320487641464 is a deficient number, since it is larger than the sum of its proper divisors (280433841656).

320487641464 is a wasteful number, since it uses less digits than its factorization.

320487641464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477030 (or 477026 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 320487641464 in words is "three hundred twenty billion, four hundred eighty-seven million, six hundred forty-one thousand, four hundred sixty-four".