77860885634634 has 32 divisors (see below), whose sum is σ = 162500588864640. Its totient is φ = 24823940970752.

The previous prime is 77860885634621. The next prime is 77860885634687. The reversal of 77860885634634 is 43643658806877.

77860885634634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 11708379 + ... + 17111630.

It is an arithmetic number, because the mean of its divisors is an integer number (5078143402020).

Almost surely, 2^{77860885634634} is an apocalyptic number.

77860885634634 is an abundant number, since it is smaller than the sum of its proper divisors (84639703230006).

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

77860885634634 is a wasteful number, since it uses less digits than its factorization.

77860885634634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28839614.

The product of its (nonzero) digits is 3901685760, while the sum is 75.

The spelling of 77860885634634 in words is "seventy-seven trillion, eight hundred sixty billion, eight hundred eighty-five million, six hundred thirty-four thousand, six hundred thirty-four".