771331120 has 40 divisors (see below), whose sum is σ = 2049538464. Its totient is φ = 264456192.

The previous prime is 771331097. The next prime is 771331133. The reversal of 771331120 is 21133177.

771331120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688129 + ... + 689248.

Almost surely, 2^771331120 is an apocalyptic number.

771331120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

771331120 is an abundant number, since it is smaller than the sum of its proper divisors (1278207344).

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

771331120 is a wasteful number, since it uses less digits than its factorization.

771331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377397 (or 1377391 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 771331120 is about 27772.8486115487. The cubic root of 771331120 is about 917.0935053840.

Adding to 771331120 its reverse (21133177), we get a palindrome (792464297).

The spelling of 771331120 in words is "seven hundred seventy-one million, three hundred thirty-one thousand, one hundred twenty".