77486975288 has 48 divisors (see below), whose sum is σ = 151027435440. Its totient is φ = 37268567040.

The previous prime is 77486975261. The next prime is 77486975333. The reversal of 77486975288 is 88257968477.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1253720 + ... + 1314072.

It is an arithmetic number, because the mean of its divisors is an integer number (3146404905).

Almost surely, 2^77486975288 is an apocalyptic number.

It is an amenable number.

77486975288 is a deficient number, since it is larger than the sum of its proper divisors (73540460152).

77486975288 is a wasteful number, since it uses less digits than its factorization.

77486975288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60588 (or 60553 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 71.

The spelling of 77486975288 in words is "seventy-seven billion, four hundred eighty-six million, nine hundred seventy-five thousand, two hundred eighty-eight".