64265237672 has 8 divisors (see below), whose sum is σ = 120497320650. Its totient is φ = 32132618832.

The previous prime is 64265237671. The next prime is 64265237713. The reversal of 64265237672 is 27673256246.

64265237672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34338313636 + 29926924036 = 185306^2 + 172994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 64265237672.

It is not an unprimeable number, because it can be changed into a prime (64265237671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4016577347 + ... + 4016577362.

Almost surely, 2^64265237672 is an apocalyptic number.

It is an amenable number.

64265237672 is a deficient number, since it is larger than the sum of its proper divisors (56232082978).

64265237672 is a wasteful number, since it uses less digits than its factorization.

64265237672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033154715 (or 8033154711 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 50.

The spelling of 64265237672 in words is "sixty-four billion, two hundred sixty-five million, two hundred thirty-seven thousand, six hundred seventy-two".