321475574651 has 48 divisors (see below), whose sum is σ = 406992768000. Its totient is φ = 248550223680.

The previous prime is 321475574573. The next prime is 321475574689. The reversal of 321475574651 is 156475574123.

It is a de Polignac number, because none of the positive numbers 2^k-321475574651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321475574651.

It is not an unprimeable number, because it can be changed into a prime (321475574551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65564666 + ... + 65569568.

It is an arithmetic number, because the mean of its divisors is an integer number (8479016000).

Almost surely, 2^321475574651 is an apocalyptic number.

321475574651 is a deficient number, since it is larger than the sum of its proper divisors (85517193349).

321475574651 is a wasteful number, since it uses less digits than its factorization.

321475574651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520 (or 5509 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 50.

The spelling of 321475574651 in words is "three hundred twenty-one billion, four hundred seventy-five million, five hundred seventy-four thousand, six hundred fifty-one".