77034767208 has 128 divisors (see below), whose sum is σ = 232350720000. Its totient is φ = 20791468800.

The previous prime is 77034767141. The next prime is 77034767213. The reversal of 77034767208 is 80276743077.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1079433 + ... + 1148583.

It is an arithmetic number, because the mean of its divisors is an integer number (1815240000).

Almost surely, 2^77034767208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77034767208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116175360000).

77034767208 is an abundant number, since it is smaller than the sum of its proper divisors (155315952792).

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

77034767208 is a wasteful number, since it uses less digits than its factorization.

77034767208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69535 (or 69531 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 77034767208 in words is "seventy-seven billion, thirty-four million, seven hundred sixty-seven thousand, two hundred eight".