64747355374746 has 48 divisors (see below), whose sum is σ = 154616927407488. Its totient is φ = 19418138438400.

The previous prime is 64747355374739. The next prime is 64747355374763.

64747355374746 is a `hidden beast` number, since 6 + 4 + 7 + 4 + 7 + 3 + 5 + 537 + 47 + 46 = 666.

64747355374746 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1685583090 + ... + 1685621501.

It is an arithmetic number, because the mean of its divisors is an integer number (3221185987656).

Almost surely, 2^{64747355374746} is an apocalyptic number.

64747355374746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64747355374746 is an abundant number, since it is smaller than the sum of its proper divisors (89869572032742).

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

64747355374746 is a wasteful number, since it uses less digits than its factorization.

64747355374746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371204707 (or 3371204704 counting only the distinct ones).

The product of its digits is 4978713600, while the sum is 72.

The spelling of 64747355374746 in words is "sixty-four trillion, seven hundred forty-seven billion, three hundred fifty-five million, three hundred seventy-four thousand, seven hundred forty-six".