89979198011 has 4 divisors (see below), whose sum is σ = 90073615752. Its totient is φ = 89884780272.

The previous prime is 89979197999. The next prime is 89979198019. The reversal of 89979198011 is 11089197998.

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 89979198011 - 2¹⁴ = 89979181627 is a prime.

It is a super-2 number, since 2×89979198011² (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 (89979198019) 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, 47207441 + ... + 47209346.

It is an arithmetic number, because the mean of its divisors is an integer number (22518403938).

Almost surely, 2^89979198011 is an apocalyptic number.

89979198011 is a deficient number, since it is larger than the sum of its proper divisors (94417741).

89979198011 is an equidigital number, since it uses as much as digits as its factorization.

89979198011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94417740.

The product of its (nonzero) digits is 2939328, while the sum is 62.

The spelling of 89979198011 in words is "eighty-nine billion, nine hundred seventy-nine million, one hundred ninety-eight thousand, eleven".