84288977689 has 16 divisors (see below), whose sum is σ = 96573050496. Its totient is φ = 72065750400.

The previous prime is 84288977671. The next prime is 84288977743. The reversal of 84288977689 is 98677988248.

It is a de Polignac number, because none of the positive numbers 2^k-84288977689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84288977189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9196269 + ... + 9205429.

It is an arithmetic number, because the mean of its divisors is an integer number (6035815656).

Almost surely, 2^84288977689 is an apocalyptic number.

It is an amenable number.

84288977689 is a deficient number, since it is larger than the sum of its proper divisors (12284072807).

84288977689 is a wasteful number, since it uses less digits than its factorization.

84288977689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12336.

The product of its digits is 780337152, while the sum is 76.

The spelling of 84288977689 in words is "eighty-four billion, two hundred eighty-eight million, nine hundred seventy-seven thousand, six hundred eighty-nine".