90238438129 has 8 divisors (see below), whose sum is σ = 106456406528. Its totient is φ = 74852160480.

The previous prime is 90238438013. The next prime is 90238438133. The reversal of 90238438129 is 92183483209.

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 90238438129 - 2⁹ = 90238437617 is a prime.

It is a super-2 number, since 2×90238438129² (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 (90238438189) 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, 207922452 + ... + 207922885.

It is an arithmetic number, because the mean of its divisors is an integer number (13307050816).

Almost surely, 2^90238438129 is an apocalyptic number.

It is an amenable number.

90238438129 is a deficient number, since it is larger than the sum of its proper divisors (16217968399).

90238438129 is a wasteful number, since it uses less digits than its factorization.

90238438129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415845375.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 90238438129 in words is "ninety billion, two hundred thirty-eight million, four hundred thirty-eight thousand, one hundred twenty-nine".