126312568825 has 6 divisors (see below), whose sum is σ = 156627585374. Its totient is φ = 101050055040.

The previous prime is 126312568817. The next prime is 126312568973. The reversal of 126312568825 is 528865213621.

It can be written as a sum of positive squares in 3 ways, for example, as 17032077049 + 109280491776 = 130507^2 + 330576^2 .

It is not a de Polignac number, because 126312568825 - 2³ = 126312568817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2526251352 + ... + 2526251401.

Almost surely, 2^126312568825 is an apocalyptic number.

It is an amenable number.

126312568825 is a deficient number, since it is larger than the sum of its proper divisors (30315016549).

126312568825 is an equidigital number, since it uses as much as digits as its factorization.

126312568825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052502763 (or 5052502758 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The spelling of 126312568825 in words is "one hundred twenty-six billion, three hundred twelve million, five hundred sixty-eight thousand, eight hundred twenty-five".