64399499346 has 64 divisors (see below), whose sum is σ = 166865126400. Its totient is φ = 16090560576.

The previous prime is 64399499323. The next prime is 64399499371.

64399499346 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3093516 + ... + 3114263.

It is an arithmetic number, because the mean of its divisors is an integer number (2607267600).

Almost surely, 2^64399499346 is an apocalyptic number.

64399499346 is an abundant number, since it is smaller than the sum of its proper divisors (102465627054).

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

64399499346 is a wasteful number, since it uses less digits than its factorization.

64399499346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6207823.

The product of its digits is 136048896, while the sum is 66.

The spelling of 64399499346 in words is "sixty-four billion, three hundred ninety-nine million, four hundred ninety-nine thousand, three hundred forty-six".