572723121870 has 48 divisors (see below), whose sum is σ = 1489439128320. Its totient is φ = 152689344192.

The previous prime is 572723121829. The next prime is 572723121881. The reversal of 572723121870 is 78121327275.

572723121870 is a `hidden beast` number, since 57 + 272 + 312 + 18 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390729 + ... + 1139348.

It is an arithmetic number, because the mean of its divisors is an integer number (31029981840).

Almost surely, 2^572723121870 is an apocalyptic number.

572723121870 is an abundant number, since it is smaller than the sum of its proper divisors (916716006450).

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

572723121870 is a wasteful number, since it uses less digits than its factorization.

572723121870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534249 (or 1534246 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 572723121870 in words is "five hundred seventy-two billion, seven hundred twenty-three million, one hundred twenty-one thousand, eight hundred seventy".