6480374652964 has 81 divisors (see below), whose sum is σ = 12373222243473. Its totient is φ = 2969255491200.

The previous prime is 6480374652953. The next prime is 6480374652971. The reversal of 6480374652964 is 4692564730846.

The square root of 6480374652964 is 2545658.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4062474051364 + 2417900601600 = 2015558^2 + 1554960^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6480374652896 and 6480374652905.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2998784044 + ... + 2998786204.

Almost surely, 2^{6480374652964} is an apocalyptic number.

6480374652964 is the 2545658-th square number.

It is an amenable number.

6480374652964 is a deficient number, since it is larger than the sum of its proper divisors (5892847590509).

6480374652964 is an equidigital number, since it uses as much as digits as its factorization.

6480374652964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426 (or 2213 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 64.

Multiplying 6480374652964 by its sum of digits (64), we get a square (414743977789696 = 20365264²).

The spelling of 6480374652964 in words is "six trillion, four hundred eighty billion, three hundred seventy-four million, six hundred fifty-two thousand, nine hundred sixty-four".