770611321648 has 40 divisors (see below), whose sum is σ = 1806727388832. Its totient is φ = 310834818048.

The previous prime is 770611321637. The next prime is 770611321657. The reversal of 770611321648 is 846123116077.

It is a junction number, because it is equal to n+sod(n) for n = 770611321598 and 770611321607.

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, 202364515 + ... + 202368322.

Almost surely, 2^770611321648 is an apocalyptic number.

It is an amenable number.

770611321648 is an abundant number, since it is smaller than the sum of its proper divisors (1036116067184).

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

770611321648 is a wasteful number, since it uses less digits than its factorization.

770611321648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404732869 (or 404732863 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 770611321648 in words is "seven hundred seventy billion, six hundred eleven million, three hundred twenty-one thousand, six hundred forty-eight".