768997455625 has 45 divisors (see below), whose sum is σ = 1118050375761. Its totient is φ = 527207310000.

The previous prime is 768997455613. The next prime is 768997455631. The reversal of 768997455625 is 526554799867.

The square root of 768997455625 is 876925.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 60289400521 + 708708055104 = 245539^2 + 841848^2 .

It is not a de Polignac number, because 768997455625 - 2⁵ = 768997455593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 153459370 + ... + 153464380.

Almost surely, 2^768997455625 is an apocalyptic number.

768997455625 is the 876925-th square number.

768997455625 is the 438463-rd centered octagonal number.

It is an amenable number.

768997455625 is a deficient number, since it is larger than the sum of its proper divisors (349052920136).

768997455625 is an frugal number, since it uses more digits than its factorization.

768997455625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056 (or 5023 counting only the distinct ones).

The product of its digits is 1143072000, while the sum is 73.

The spelling of 768997455625 in words is "seven hundred sixty-eight billion, nine hundred ninety-seven million, four hundred fifty-five thousand, six hundred twenty-five".