64745344354746 has 32 divisors (see below), whose sum is σ = 141317815301568. Its totient is φ = 19612128291840.

The previous prime is 64745344354693. The next prime is 64745344354753.

64745344354746 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64745344354746² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191655655 + ... + 191993178.

It is an arithmetic number, because the mean of its divisors is an integer number (4416181728174).

Almost surely, 2^{64745344354746} is an apocalyptic number.

64745344354746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64745344354746 is an abundant number, since it is smaller than the sum of its proper divisors (76572470946822).

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

64745344354746 is a wasteful number, since it uses less digits than its factorization.

64745344354746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383651406.

The product of its digits is 1625702400, while the sum is 66.

The spelling of 64745344354746 in words is "sixty-four trillion, seven hundred forty-five billion, three hundred forty-four million, three hundred fifty-four thousand, seven hundred forty-six".