77304266540 has 24 divisors (see below), whose sum is σ = 162355151952. Its totient is φ = 30918622400.

The previous prime is 77304266509. The next prime is 77304266573. The reversal of 77304266540 is 4566240377.

It is a junction number, because it is equal to n+sod(n) for n = 77304266491 and 77304266500.

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, 18407 + ... + 393633.

It is an arithmetic number, because the mean of its divisors is an integer number (6764797998).

Almost surely, 2^77304266540 is an apocalyptic number.

It is an amenable number.

77304266540 is an abundant number, since it is smaller than the sum of its proper divisors (85050885412).

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

77304266540 is a wasteful number, since it uses less digits than its factorization.

77304266540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385537 (or 385535 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 77304266540 in words is "seventy-seven billion, three hundred four million, two hundred sixty-six thousand, five hundred forty".