89776801680 has 40 divisors (see below), whose sum is σ = 278308085952. Its totient is φ = 23940480384.

The previous prime is 89776801663. The next prime is 89776801703. The reversal of 89776801680 is 8610867798.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187034764 + ... + 187035243.

Almost surely, 2^89776801680 is an apocalyptic number.

89776801680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89776801680 is an abundant number, since it is smaller than the sum of its proper divisors (188531284272).

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

89776801680 is a wasteful number, since it uses less digits than its factorization.

89776801680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374070023 (or 374070017 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 60.

The spelling of 89776801680 in words is "eighty-nine billion, seven hundred seventy-six million, eight hundred one thousand, six hundred eighty".