775807830825 has 48 divisors (see below), whose sum is σ = 1306115171136. Its totient is φ = 406269337600.

The previous prime is 775807830803. The next prime is 775807830859. The reversal of 775807830825 is 528038708577.

It is not a de Polignac number, because 775807830825 - 2⁶ = 775807830761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 479065 + ... + 1334585.

It is an arithmetic number, because the mean of its divisors is an integer number (27210732732).

Almost surely, 2^775807830825 is an apocalyptic number.

775807830825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

775807830825 is a deficient number, since it is larger than the sum of its proper divisors (530307340311).

775807830825 is a wasteful number, since it uses less digits than its factorization.

775807830825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855754 (or 855749 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 775807830825 in words is "seven hundred seventy-five billion, eight hundred seven million, eight hundred thirty thousand, eight hundred twenty-five".