772812274250 has 16 divisors (see below), whose sum is σ = 1446704577864. Its totient is φ = 309124909600.

The previous prime is 772812274243. The next prime is 772812274321. The reversal of 772812274250 is 52472218277.

It can be written as a sum of positive squares in 4 ways, for example, as 334524581161 + 438287693089 = 578381^2 + 662033^2 .

It is a super-2 number, since 2×772812274250² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 772812274195 and 772812274204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545624299 + ... + 1545624798.

Almost surely, 2^772812274250 is an apocalyptic number.

772812274250 is a deficient number, since it is larger than the sum of its proper divisors (673892303614).

772812274250 is a wasteful number, since it uses less digits than its factorization.

772812274250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091249114 (or 3091249104 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 47.

The spelling of 772812274250 in words is "seven hundred seventy-two billion, eight hundred twelve million, two hundred seventy-four thousand, two hundred fifty".