89691221760 has 144 divisors (see below), whose sum is σ = 327373057536. Its totient is φ = 20500844544.

The previous prime is 89691221731. The next prime is 89691221803. The reversal of 89691221760 is 6712219698.

It is a congruent number.

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, 1641484 + ... + 1695243.

Almost surely, 2^89691221760 is an apocalyptic number.

89691221760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89691221760 is an abundant number, since it is smaller than the sum of its proper divisors (237681835776).

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

89691221760 is a wasteful number, since it uses less digits than its factorization.

89691221760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336758 (or 3336744 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 89691221760 in words is "eighty-nine billion, six hundred ninety-one million, two hundred twenty-one thousand, seven hundred sixty".