572397313778 has 4 divisors (see below), whose sum is σ = 858595970670. Its totient is φ = 286198656888.

The previous prime is 572397313769. The next prime is 572397313783. The reversal of 572397313778 is 877313793275.

572397313778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 390403781329 + 181993532449 = 624823^2 + 426607^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 572397313778.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143099328443 + ... + 143099328446.

Almost surely, 2^572397313778 is an apocalyptic number.

572397313778 is a deficient number, since it is larger than the sum of its proper divisors (286198656892).

572397313778 is a wasteful number, since it uses less digits than its factorization.

572397313778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286198656891.

The product of its digits is 46675440, while the sum is 62.

The spelling of 572397313778 in words is "five hundred seventy-two billion, three hundred ninety-seven million, three hundred thirteen thousand, seven hundred seventy-eight".