77211277068 has 96 divisors (see below), whose sum is σ = 183012919488. Its totient is φ = 25333862400.

The previous prime is 77211277019. The next prime is 77211277069. The reversal of 77211277068 is 86077211277.

It is not an unprimeable number, because it can be changed into a prime (77211277069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183399498 + ... + 183399918.

It is an arithmetic number, because the mean of its divisors is an integer number (1906384578).

Almost surely, 2^77211277068 is an apocalyptic number.

It is an amenable number.

77211277068 is an abundant number, since it is smaller than the sum of its proper divisors (105801642420).

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

77211277068 is a wasteful number, since it uses less digits than its factorization.

77211277068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 48.

The spelling of 77211277068 in words is "seventy-seven billion, two hundred eleven million, two hundred seventy-seven thousand, sixty-eight".