773968860025 has 27 divisors (see below), whose sum is σ = 964936722829. Its totient is φ = 615828500000.

The previous prime is 773968860013. The next prime is 773968860037. The reversal of 773968860025 is 520068869377.

The square root of 773968860025 is 879755.

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

It is an interprime number because it is at equal distance from previous prime (773968860013) and next prime (773968860037).

It can be written as a sum of positive squares in 4 ways, for example, as 52515680569 + 721453179456 = 229163^2 + 849384^2 .

It is not a de Polignac number, because 773968860025 - 2⁹ = 773968859513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1104092175 + ... + 1104092875.

Almost surely, 2^773968860025 is an apocalyptic number.

773968860025 is the 879755-th square number.

773968860025 is the 439878-th centered octagonal number.

It is an amenable number.

773968860025 is a deficient number, since it is larger than the sum of its proper divisors (190967862804).

773968860025 is an frugal number, since it uses more digits than its factorization.

773968860025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 773968860025 in words is "seven hundred seventy-three billion, nine hundred sixty-eight million, eight hundred sixty thousand, twenty-five".