90239741867 has 8 divisors (see below), whose sum is σ = 100300777200. Its totient is φ = 80488276960.

The previous prime is 90239741861. The next prime is 90239741869. The reversal of 90239741867 is 76814793209.

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 90239741867 - 2⁸ = 90239741611 is a prime.

It is a super-2 number, since 2×90239741867² (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 (90239741861) 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, 77391992 + ... + 77393157.

It is an arithmetic number, because the mean of its divisors is an integer number (12537597150).

Almost surely, 2^90239741867 is an apocalyptic number.

90239741867 is a deficient number, since it is larger than the sum of its proper divisors (10061035333).

90239741867 is a wasteful number, since it uses less digits than its factorization.

90239741867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154785213.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 90239741867 in words is "ninety billion, two hundred thirty-nine million, seven hundred forty-one thousand, eight hundred sixty-seven".