72064144252 has 12 divisors (see below), whose sum is σ = 126125151880. Its totient is φ = 36028386576.

The previous prime is 72064144247. The next prime is 72064144261. The reversal of 72064144252 is 25244146027.

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, 877158 + ... + 955789.

Almost surely, 2^72064144252 is an apocalyptic number.

It is an amenable number.

72064144252 is a deficient number, since it is larger than the sum of its proper divisors (54061007628).

72064144252 is a wasteful number, since it uses less digits than its factorization.

72064144252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842780 (or 1842778 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The spelling of 72064144252 in words is "seventy-two billion, sixty-four million, one hundred forty-four thousand, two hundred fifty-two".