977794851275 has 18 divisors (see below), whose sum is σ = 1322711944812. Its totient is φ = 711111602400.

The previous prime is 977794851217. The next prime is 977794851289. The reversal of 977794851275 is 572158497779.

It is not a de Polignac number, because 977794851275 - 2⁶ = 977794851211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 977794851199 and 977794851208.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16368161 + ... + 16427789.

It is an arithmetic number, because the mean of its divisors is an integer number (73483996934).

Almost surely, 2^977794851275 is an apocalyptic number.

977794851275 is a deficient number, since it is larger than the sum of its proper divisors (344917093537).

977794851275 is an frugal number, since it uses more digits than its factorization.

977794851275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119279 (or 59645 counting only the distinct ones).

The product of its digits is 311169600, while the sum is 71.

The spelling of 977794851275 in words is "nine hundred seventy-seven billion, seven hundred ninety-four million, eight hundred fifty-one thousand, two hundred seventy-five".