90236427839 has 8 divisors (see below), whose sum is σ = 95598252288. Its totient is φ = 84880581120.

The previous prime is 90236427829. The next prime is 90236427847. The reversal of 90236427839 is 93872463209.

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

It is not a de Polignac number, because 90236427839 - 2⁴ = 90236427823 is a prime.

It is a super-2 number, since 2×90236427839² (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 (90236427829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463327 + ... + 1523744.

It is an arithmetic number, because the mean of its divisors is an integer number (11949781536).

Almost surely, 2^90236427839 is an apocalyptic number.

90236427839 is a deficient number, since it is larger than the sum of its proper divisors (5361824449).

90236427839 is a wasteful number, since it uses less digits than its factorization.

90236427839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988865.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 90236427839 in words is "ninety billion, two hundred thirty-six million, four hundred twenty-seven thousand, eight hundred thirty-nine".