769776812 has 48 divisors (see below), whose sum is σ = 1618854720. Its totient is φ = 313286400.

The previous prime is 769776803. The next prime is 769776851. The reversal of 769776812 is 218677967.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41762 + ... + 57302.

It is an arithmetic number, because the mean of its divisors is an integer number (33726140).

Almost surely, 2^769776812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769776812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809427360).

769776812 is an abundant number, since it is smaller than the sum of its proper divisors (849077908).

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

769776812 is a wasteful number, since it uses less digits than its factorization.

769776812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15642 (or 15640 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 53.

The square root of 769776812 is about 27744.8519909550. The cubic root of 769776812 is about 916.4770799693.

The spelling of 769776812 in words is "seven hundred sixty-nine million, seven hundred seventy-six thousand, eight hundred twelve".