64749799794746 has 16 divisors (see below), whose sum is σ = 105977664394560. Its totient is φ = 29425214249280.

The previous prime is 64749799794679. The next prime is 64749799794787.

It is a happy number.

64749799794746 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325544831 + ... + 325743666.

It is an arithmetic number, because the mean of its divisors is an integer number (6623604024660).

Almost surely, 2^{64749799794746} is an apocalyptic number.

64749799794746 is a deficient number, since it is larger than the sum of its proper divisors (41227864599814).

64749799794746 is a wasteful number, since it uses less digits than its factorization.

64749799794746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651293029.

The product of its digits is 145179288576, while the sum is 92.

The spelling of 64749799794746 in words is "sixty-four trillion, seven hundred forty-nine billion, seven hundred ninety-nine million, seven hundred ninety-four thousand, seven hundred forty-six".