94889551681 has 8 divisors (see below), whose sum is σ = 96492824064. Its totient is φ = 93287818320.

The previous prime is 94889551621. The next prime is 94889551777. The reversal of 94889551681 is 18615598849.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94889551681 is a prime.

It is a super-2 number, since 2×94889551681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94889551621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260065 + ... + 507358.

It is an arithmetic number, because the mean of its divisors is an integer number (12061603008).

Almost surely, 2^94889551681 is an apocalyptic number.

It is an amenable number.

94889551681 is a deficient number, since it is larger than the sum of its proper divisors (1603272383).

94889551681 is a wasteful number, since it uses less digits than its factorization.

94889551681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769511.

The product of its digits is 24883200, while the sum is 64.

The spelling of 94889551681 in words is "ninety-four billion, eight hundred eighty-nine million, five hundred fifty-one thousand, six hundred eighty-one".