64373367572 has 12 divisors (see below), whose sum is σ = 112723419060. Its totient is φ = 32166676416.

The previous prime is 64373367557. The next prime is 64373367599. The reversal of 64373367572 is 27576337346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61406822416 + 2966545156 = 247804^2 + 54466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4994603 + ... + 5007474.

It is an arithmetic number, because the mean of its divisors is an integer number (9393618255).

Almost surely, 2^64373367572 is an apocalyptic number.

It is an amenable number.

64373367572 is a deficient number, since it is larger than the sum of its proper divisors (48350051488).

64373367572 is a wasteful number, since it uses less digits than its factorization.

64373367572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003690 (or 10003688 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 53.

The spelling of 64373367572 in words is "sixty-four billion, three hundred seventy-three million, three hundred sixty-seven thousand, five hundred seventy-two".