64467399376446 has 16 divisors (see below), whose sum is σ = 140656144094208. Its totient is φ = 19535575568600.

The previous prime is 64467399376417. The next prime is 64467399376481.

64467399376446 is nontrivially palindromic in base 10.

It is a congruent number.

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, 488389389150 + ... + 488389389281.

It is an arithmetic number, because the mean of its divisors is an integer number (8791009005888).

Almost surely, 2^{64467399376446} is an apocalyptic number.

64467399376446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64467399376446 is an abundant number, since it is smaller than the sum of its proper divisors (76188744717762).

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

64467399376446 is a wasteful number, since it uses less digits than its factorization.

64467399376446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976778778447.

The product of its digits is 11851370496, while the sum is 78.

The spelling of 64467399376446 in words is "sixty-four trillion, four hundred sixty-seven billion, three hundred ninety-nine million, three hundred seventy-six thousand, four hundred forty-six".