90516019189 has 32 divisors (see below), whose sum is σ = 102876691680. Its totient is φ = 79204220928.

The previous prime is 90516019169. The next prime is 90516019193. The reversal of 90516019189 is 98191061509.

It can be written as a sum of positive squares in 16 ways, for example, as 9072562500 + 81443456689 = 95250^2 + 285383^2 .

It is not a de Polignac number, because 90516019189 - 2²³ = 90507630581 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 (90516019159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1743799 + ... + 1794955.

It is an arithmetic number, because the mean of its divisors is an integer number (3214896615).

Almost surely, 2^90516019189 is an apocalyptic number.

It is an amenable number.

90516019189 is a deficient number, since it is larger than the sum of its proper divisors (12360672491).

90516019189 is a wasteful number, since it uses less digits than its factorization.

90516019189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51337.

The product of its (nonzero) digits is 174960, while the sum is 49.

The spelling of 90516019189 in words is "ninety billion, five hundred sixteen million, nineteen thousand, one hundred eighty-nine".