77608898752 has 112 divisors (see below), whose sum is σ = 192847691520. Its totient is φ = 30104755200.

The previous prime is 77608898749. The next prime is 77608898789. The reversal of 77608898752 is 25789880677.

It is a tau number, because it is divible by the number of its divisors (112).

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, 1094127 + ... + 1162897.

Almost surely, 2^77608898752 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 77608898752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96423845760).

77608898752 is an abundant number, since it is smaller than the sum of its proper divisors (115238792768).

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

77608898752 is a wasteful number, since it uses less digits than its factorization.

77608898752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69030 (or 69020 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 67.

The spelling of 77608898752 in words is "seventy-seven billion, six hundred eight million, eight hundred ninety-eight thousand, seven hundred fifty-two".