772877027640 has 32 divisors (see below), whose sum is σ = 2318631083280. Its totient is φ = 206100540672.

The previous prime is 772877027617. The next prime is 772877027653. The reversal of 772877027640 is 46720778277.

It is a congruent number.

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, 3220320829 + ... + 3220321068.

Almost surely, 2^772877027640 is an apocalyptic number.

It is an amenable number.

772877027640 is an abundant number, since it is smaller than the sum of its proper divisors (1545754055640).

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

772877027640 is a wasteful number, since it uses less digits than its factorization.

772877027640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440641911 (or 6440641907 counting only the distinct ones).

The product of its (nonzero) digits is 12907776, while the sum is 57.

The spelling of 772877027640 in words is "seven hundred seventy-two billion, eight hundred seventy-seven million, twenty-seven thousand, six hundred forty".