77088907020 has 48 divisors (see below), whose sum is σ = 215861506560. Its totient is φ = 20555845056.

The previous prime is 77088906991. The next prime is 77088907031. The reversal of 77088907020 is 2070988077.

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, 1579341 + ... + 1627419.

It is an arithmetic number, because the mean of its divisors is an integer number (4497114720).

Almost surely, 2^77088907020 is an apocalyptic number.

It is an amenable number.

77088907020 is an abundant number, since it is smaller than the sum of its proper divisors (138772599540).

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

77088907020 is a wasteful number, since it uses less digits than its factorization.

77088907020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74814 (or 74812 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 48.

The spelling of 77088907020 in words is "seventy-seven billion, eighty-eight million, nine hundred seven thousand, twenty".