64026262656 has 48 divisors (see below), whose sum is σ = 184242243510. Its totient is φ = 21342087168.

The previous prime is 64026262649. The next prime is 64026262661. The reversal of 64026262656 is 65626262046.

It can be written as a sum of positive squares in only one way, i.e., 58699598400 + 5326664256 = 242280^2 + 72984^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27788025 + ... + 27790328.

Almost surely, 2^64026262656 is an apocalyptic number.

It is an amenable number.

64026262656 is an abundant number, since it is smaller than the sum of its proper divisors (120215980854).

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

64026262656 is a wasteful number, since it uses less digits than its factorization.

64026262656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55578373 (or 55578358 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 64026262656 in words is "sixty-four billion, twenty-six million, two hundred sixty-two thousand, six hundred fifty-six".