252762788789 has 6 divisors (see below), whose sum is σ = 294030182934. Its totient is φ = 216653818920.

The previous prime is 252762788783. The next prime is 252762788821. The reversal of 252762788789 is 987887267252.

It can be written as a sum of positive squares in only one way, i.e., 163735148164 + 89027640625 = 404642^2 + 298375^2 .

It is a de Polignac number, because none of the positive numbers 2^k-252762788789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252762788783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2579212082 + ... + 2579212179.

It is an arithmetic number, because the mean of its divisors is an integer number (49005030489).

Almost surely, 2^252762788789 is an apocalyptic number.

It is an amenable number.

252762788789 is a deficient number, since it is larger than the sum of its proper divisors (41267394145).

252762788789 is an equidigital number, since it uses as much as digits as its factorization.

252762788789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158424275 (or 5158424268 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 71.

The spelling of 252762788789 in words is "two hundred fifty-two billion, seven hundred sixty-two million, seven hundred eighty-eight thousand, seven hundred eighty-nine".