64511854496 has 48 divisors (see below), whose sum is σ = 128746485504. Its totient is φ = 31816932864.

The previous prime is 64511854493. The next prime is 64511854501. The reversal of 64511854496 is 69445811546.

It is not an unprimeable number, because it can be changed into a prime (64511854493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757361 + ... + 838223.

It is an arithmetic number, because the mean of its divisors is an integer number (2682218448).

Almost surely, 2^64511854496 is an apocalyptic number.

It is an amenable number.

64511854496 is a deficient number, since it is larger than the sum of its proper divisors (64234631008).

64511854496 is a wasteful number, since it uses less digits than its factorization.

64511854496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81213 (or 81205 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 53.

The spelling of 64511854496 in words is "sixty-four billion, five hundred eleven million, eight hundred fifty-four thousand, four hundred ninety-six".