90110370989 has 4 divisors (see below), whose sum is σ = 92205961056. Its totient is φ = 88014780924.

The previous prime is 90110370979. The next prime is 90110370997. The reversal of 90110370989 is 98907301109.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90110370989 - 2⁸ = 90110370733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90110370949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047794969 + ... + 1047795054.

It is an arithmetic number, because the mean of its divisors is an integer number (23051490264).

Almost surely, 2^90110370989 is an apocalyptic number.

It is an amenable number.

90110370989 is a deficient number, since it is larger than the sum of its proper divisors (2095590067).

90110370989 is a wasteful number, since it uses less digits than its factorization.

90110370989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095590066.

The product of its (nonzero) digits is 122472, while the sum is 47.

The spelling of 90110370989 in words is "ninety billion, one hundred ten million, three hundred seventy thousand, nine hundred eighty-nine".