64307693649376 has 12 divisors (see below), whose sum is σ = 126605771872272. Its totient is φ = 32153846824672.

The previous prime is 64307693649373. The next prime is 64307693649403. The reversal of 64307693649376 is 67394639670346.

It is a junction number, because it is equal to n+sod(n) for n = 64307693649299 and 64307693649308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64307693649373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004807713240 + ... + 1004807713303.

It is an arithmetic number, because the mean of its divisors is an integer number (10550480989356).

Almost surely, 2^{64307693649376} is an apocalyptic number.

It is an amenable number.

64307693649376 is a deficient number, since it is larger than the sum of its proper divisors (62298078222896).

64307693649376 is a wasteful number, since it uses less digits than its factorization.

64307693649376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009615426553 (or 2009615426545 counting only the distinct ones).

The product of its (nonzero) digits is 2222131968, while the sum is 73.

The spelling of 64307693649376 in words is "sixty-four trillion, three hundred seven billion, six hundred ninety-three million, six hundred forty-nine thousand, three hundred seventy-six".