89946542619081 has 24 divisors (see below), whose sum is σ = 137678682960000. Its totient is φ = 56427078645792.

The previous prime is 89946542619041. The next prime is 89946542619139. The reversal of 89946542619081 is 18091624564998.

89946542619081 is a `hidden beast` number, since 8 + 9 + 9 + 4 + 6 + 5 + 426 + 190 + 8 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-89946542619081 is a prime.

It is a super-2 number, since 2×89946542619081² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89946542619041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1765085841 + ... + 1765136798.

It is an arithmetic number, because the mean of its divisors is an integer number (5736611790000).

Almost surely, 2^{89946542619081} is an apocalyptic number.

It is an amenable number.

89946542619081 is a deficient number, since it is larger than the sum of its proper divisors (47732140340919).

89946542619081 is a wasteful number, since it uses less digits than its factorization.

89946542619081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530222813 (or 3530222810 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 72.

The spelling of 89946542619081 in words is "eighty-nine trillion, nine hundred forty-six billion, five hundred forty-two million, six hundred nineteen thousand, eighty-one".