64650486502448 has 80 divisors (see below), whose sum is σ = 156174209044224. Its totient is φ = 25187613914880.

The previous prime is 64650486502421. The next prime is 64650486502463. The reversal of 64650486502448 is 84420568405646.

It is a super-2 number, since 2×64650486502448² (a number of 28 digits) contains 22 as substring.

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, 34617311 + ... + 36437057.

Almost surely, 2^{64650486502448} is an apocalyptic number.

It is an amenable number.

64650486502448 is an abundant number, since it is smaller than the sum of its proper divisors (91523722541776).

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

64650486502448 is a wasteful number, since it uses less digits than its factorization.

64650486502448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848610 (or 1848604 counting only the distinct ones).

The product of its (nonzero) digits is 176947200, while the sum is 62.

The spelling of 64650486502448 in words is "sixty-four trillion, six hundred fifty billion, four hundred eighty-six million, five hundred two thousand, four hundred forty-eight".