77243812260 has 96 divisors (see below), whose sum is σ = 229944718080. Its totient is φ = 19331000832.

The previous prime is 77243812211. The next prime is 77243812279. The reversal of 77243812260 is 6221834277.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 454915 + ... + 601194.

It is an arithmetic number, because the mean of its divisors is an integer number (2395257480).

Almost surely, 2^77243812260 is an apocalyptic number.

It is an amenable number.

77243812260 is an abundant number, since it is smaller than the sum of its proper divisors (152700905820).

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

77243812260 is a wasteful number, since it uses less digits than its factorization.

77243812260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056197 (or 1056195 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 77243812260 in words is "seventy-seven billion, two hundred forty-three million, eight hundred twelve thousand, two hundred sixty".