64904266272 has 48 divisors (see below), whose sum is σ = 180395685792. Its totient is φ = 20362122240.

The previous prime is 64904266199. The next prime is 64904266303. The reversal of 64904266272 is 27266240946.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19883254 + ... + 19886517.

It is an arithmetic number, because the mean of its divisors is an integer number (3758243454).

Almost surely, 2^64904266272 is an apocalyptic number.

It is an amenable number.

64904266272 is an abundant number, since it is smaller than the sum of its proper divisors (115491419520).

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

64904266272 is a wasteful number, since it uses less digits than its factorization.

64904266272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39769801 (or 39769793 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 64904266272 in words is "sixty-four billion, nine hundred four million, two hundred sixty-six thousand, two hundred seventy-two".