90534197519 has 8 divisors (see below), whose sum is σ = 93472608768. Its totient is φ = 87630560640.

The previous prime is 90534197513. The next prime is 90534197521. The reversal of 90534197519 is 91579143509.

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 90534197519 - 2¹² = 90534193423 is a prime.

It is a super-2 number, since 2×90534197519² (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 (90534197513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8688302 + ... + 8698715.

It is an arithmetic number, because the mean of its divisors is an integer number (11684076096).

Almost surely, 2^90534197519 is an apocalyptic number.

90534197519 is a deficient number, since it is larger than the sum of its proper divisors (2938411249).

90534197519 is a wasteful number, since it uses less digits than its factorization.

90534197519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17387185.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The spelling of 90534197519 in words is "ninety billion, five hundred thirty-four million, one hundred ninety-seven thousand, five hundred nineteen".