90995719489 has 8 divisors (see below), whose sum is σ = 94501631840. Its totient is φ = 87552976896.

The previous prime is 90995719483. The next prime is 90995719517. The reversal of 90995719489 is 98491759909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90995719489 - 2³ = 90995719481 is a prime.

It is a super-2 number, since 2×90995719489² (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 (90995719481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15789504 + ... + 15795265.

It is an arithmetic number, because the mean of its divisors is an integer number (11812703980).

Almost surely, 2^90995719489 is an apocalyptic number.

It is an amenable number.

90995719489 is a deficient number, since it is larger than the sum of its proper divisors (3505912351).

90995719489 is a wasteful number, since it uses less digits than its factorization.

90995719489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31584879.

The product of its (nonzero) digits is 66134880, while the sum is 70.

The spelling of 90995719489 in words is "ninety billion, nine hundred ninety-five million, seven hundred nineteen thousand, four hundred eighty-nine".