89878905720 has 112 divisors (see below), whose sum is σ = 303202703160. Its totient is φ = 23967700416.

The previous prime is 89878905703. The next prime is 89878905749. The reversal of 89878905720 is 2750987898.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1511974 + ... + 1570293.

Almost surely, 2^89878905720 is an apocalyptic number.

It is an amenable number.

89878905720 is an abundant number, since it is smaller than the sum of its proper divisors (213323797440).

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

89878905720 is a wasteful number, since it uses less digits than its factorization.

89878905720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082296 (or 3082277 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 89878905720 in words is "eighty-nine billion, eight hundred seventy-eight million, nine hundred five thousand, seven hundred twenty".