64456482571688 has 8 divisors (see below), whose sum is σ = 120855904821930. Its totient is φ = 32228241285840.

The previous prime is 64456482571673. The next prime is 64456482571709. The reversal of 64456482571688 is 88617528465446.

It can be written as a sum of positive squares in only one way, i.e., 45596553360484 + 18859929211204 = 6752522^2 + 4342802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4028530160723 + ... + 4028530160738.

Almost surely, 2^{64456482571688} is an apocalyptic number.

It is an amenable number.

64456482571688 is a deficient number, since it is larger than the sum of its proper divisors (56399422250242).

64456482571688 is a wasteful number, since it uses less digits than its factorization.

64456482571688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8057060321467 (or 8057060321463 counting only the distinct ones).

The product of its digits is 2477260800, while the sum is 74.

The spelling of 64456482571688 in words is "sixty-four trillion, four hundred fifty-six billion, four hundred eighty-two million, five hundred seventy-one thousand, six hundred eighty-eight".