6464076704646 has 48 divisors (see below), whose sum is σ = 14210589517824. Its totient is φ = 1958769054000.

The previous prime is 6464076704621. The next prime is 6464076704653.

6464076704646 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6464076704646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58163151 + ... + 58274181.

It is an arithmetic number, because the mean of its divisors is an integer number (296053948288).

Almost surely, 2^{6464076704646} is an apocalyptic number.

6464076704646 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6464076704646 is an abundant number, since it is smaller than the sum of its proper divisors (7746512813178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464076704646 is a wasteful number, since it uses less digits than its factorization.

6464076704646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191249 (or 191238 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 60.

The spelling of 6464076704646 in words is "six trillion, four hundred sixty-four billion, seventy-six million, seven hundred four thousand, six hundred forty-six".