90842657919 has 16 divisors (see below), whose sum is σ = 130457048064. Its totient is φ = 55896184800.

The previous prime is 90842657887. The next prime is 90842657929. The reversal of 90842657919 is 91975624809.

It is not a de Polignac number, because 90842657919 - 2⁵ = 90842657887 is a prime.

It is a super-2 number, since 2×90842657919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90842657929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179514 + ... + 462504.

It is an arithmetic number, because the mean of its divisors is an integer number (8153565504).

Almost surely, 2^90842657919 is an apocalyptic number.

90842657919 is a deficient number, since it is larger than the sum of its proper divisors (39614390145).

90842657919 is a wasteful number, since it uses less digits than its factorization.

90842657919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291238.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 90842657919 in words is "ninety billion, eight hundred forty-two million, six hundred fifty-seven thousand, nine hundred nineteen".