64481605577288 has 32 divisors (see below), whose sum is σ = 123533163358200. Its totient is φ = 31542875240448.

The previous prime is 64481605577269. The next prime is 64481605577297. The reversal of 64481605577288 is 88277550618446.

It can be written as a sum of positive squares in 4 ways, for example, as 52523966064964 + 11957639512324 = 7247342^2 + 3457982^2 .

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, 215260043 + ... + 215559386.

Almost surely, 2^{64481605577288} is an apocalyptic number.

It is an amenable number.

64481605577288 is a deficient number, since it is larger than the sum of its proper divisors (59051557780912).

64481605577288 is a wasteful number, since it uses less digits than its factorization.

64481605577288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430819841 (or 430819837 counting only the distinct ones).

The product of its (nonzero) digits is 722534400, while the sum is 71.

The spelling of 64481605577288 in words is "sixty-four trillion, four hundred eighty-one billion, six hundred five million, five hundred seventy-seven thousand, two hundred eighty-eight".