89892978319 has 4 divisors (see below), whose sum is σ = 89968710744. Its totient is φ = 89817245896.

The previous prime is 89892978313. The next prime is 89892978323. The reversal of 89892978319 is 91387929898.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89892978319 - 2⁷ = 89892978191 is a prime.

It is a super-2 number, since 2×89892978319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89892978313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37864432 + ... + 37866805.

It is an arithmetic number, because the mean of its divisors is an integer number (22492177686).

Almost surely, 2^89892978319 is an apocalyptic number.

89892978319 is a deficient number, since it is larger than the sum of its proper divisors (75732425).

89892978319 is a wasteful number, since it uses less digits than its factorization.

89892978319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75732424.

The product of its digits is 141087744, while the sum is 73.

The spelling of 89892978319 in words is "eighty-nine billion, eight hundred ninety-two million, nine hundred seventy-eight thousand, three hundred nineteen".