89608665418 has 4 divisors (see below), whose sum is σ = 134412998130. Its totient is φ = 44804332708.

The previous prime is 89608665383. The next prime is 89608665511. The reversal of 89608665418 is 81456680698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81456680698 = 2 ⋅40728340349.

It can be written as a sum of positive squares in only one way, i.e., 61611679089 + 27996986329 = 248217^2 + 167323^2 .

It is a super-2 number, since 2×89608665418² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22402166353 + ... + 22402166356.

Almost surely, 2^89608665418 is an apocalyptic number.

89608665418 is a deficient number, since it is larger than the sum of its proper divisors (44804332712).

89608665418 is a wasteful number, since it uses less digits than its factorization.

89608665418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44804332711.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 89608665418 in words is "eighty-nine billion, six hundred eight million, six hundred sixty-five thousand, four hundred eighteen".