771752961 has 32 divisors (see below), whose sum is σ = 1383540480. Its totient is φ = 415058688.

The previous prime is 771752929. The next prime is 771752983. The reversal of 771752961 is 169257177.

It is not a de Polignac number, because 771752961 - 2⁵ = 771752929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (771752911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116886 + ... + 123311.

It is an arithmetic number, because the mean of its divisors is an integer number (43235640).

Almost surely, 2^771752961 is an apocalyptic number.

It is an amenable number.

771752961 is a deficient number, since it is larger than the sum of its proper divisors (611787519).

771752961 is a wasteful number, since it uses less digits than its factorization.

771752961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240230 (or 240224 counting only the distinct ones).

The product of its digits is 185220, while the sum is 45.

The square root of 771752961 is about 27780.4420591178. The cubic root of 771752961 is about 917.2606610654.

The spelling of 771752961 in words is "seven hundred seventy-one million, seven hundred fifty-two thousand, nine hundred sixty-one".