772774980 has 48 divisors (see below), whose sum is σ = 2204604864. Its totient is φ = 202184320.

The previous prime is 772774969. The next prime is 772774991. The reversal of 772774980 is 89477277.

It is an interprime number because it is at equal distance from previous prime (772774969) and next prime (772774991).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118326 + ... + 124685.

It is an arithmetic number, because the mean of its divisors is an integer number (45929268).

Almost surely, 2^772774980 is an apocalyptic number.

It is an amenable number.

772774980 is an abundant number, since it is smaller than the sum of its proper divisors (1431829884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

772774980 is a wasteful number, since it uses less digits than its factorization.

772774980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243076 (or 243074 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 51.

The square root of 772774980 is about 27798.8305509422. The cubic root of 772774980 is about 917.6653865650.

The spelling of 772774980 in words is "seven hundred seventy-two million, seven hundred seventy-four thousand, nine hundred eighty".