771248051 has 12 divisors (see below), whose sum is σ = 900597168. Its totient is φ = 646991472.

The previous prime is 771248047. The next prime is 771248063. The reversal of 771248051 is 150842177.

It is not a de Polignac number, because 771248051 - 2² = 771248047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (771242051) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9476 + ... + 40401.

It is an arithmetic number, because the mean of its divisors is an integer number (75049764).

Almost surely, 2^771248051 is an apocalyptic number.

771248051 is a deficient number, since it is larger than the sum of its proper divisors (129349117).

771248051 is an equidigital number, since it uses as much as digits as its factorization.

771248051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49978 (or 49931 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 771248051 is about 27771.3530639038. The cubic root of 771248051 is about 917.0605818775.

The spelling of 771248051 in words is "seven hundred seventy-one million, two hundred forty-eight thousand, fifty-one".