94921220889 has 96 divisors (see below), whose sum is σ = 161795612160. Its totient is φ = 53002771200.

The previous prime is 94921220887. The next prime is 94921220897. The reversal of 94921220889 is 98802212949.

It is not a de Polignac number, because 94921220889 - 2¹ = 94921220887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (94921220887) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26759214 + ... + 26762760.

It is an arithmetic number, because the mean of its divisors is an integer number (1685370960).

Almost surely, 2^94921220889 is an apocalyptic number.

94921220889 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

94921220889 is a deficient number, since it is larger than the sum of its proper divisors (66874391271).

94921220889 is a wasteful number, since it uses less digits than its factorization.

94921220889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 94921220889 in words is "ninety-four billion, nine hundred twenty-one million, two hundred twenty thousand, eight hundred eighty-nine".