776749469540 has 48 divisors (see below), whose sum is σ = 1782623384640. Its totient is φ = 281952612480.

The previous prime is 776749469527. The next prime is 776749469581. The reversal of 776749469540 is 45964947677.

776749469540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3011735 + ... + 3259454.

It is an arithmetic number, because the mean of its divisors is an integer number (37137987180).

Almost surely, 2^776749469540 is an apocalyptic number.

It is an amenable number.

776749469540 is an abundant number, since it is smaller than the sum of its proper divisors (1005873915100).

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

776749469540 is a wasteful number, since it uses less digits than its factorization.

776749469540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271772 (or 6271770 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 68.

The spelling of 776749469540 in words is "seven hundred seventy-six billion, seven hundred forty-nine million, four hundred sixty-nine thousand, five hundred forty".