90172726203 has 8 divisors (see below), whose sum is σ = 137406059008. Its totient is φ = 51527272104.

The previous prime is 90172726181. The next prime is 90172726243. The reversal of 90172726203 is 30262727109.

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

It is not a de Polignac number, because 90172726203 - 2¹⁴ = 90172709819 is a prime.

It is a super-2 number, since 2×90172726203² (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 (90172726243) 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, 2146969651 + ... + 2146969692.

It is an arithmetic number, because the mean of its divisors is an integer number (17175757376).

Almost surely, 2^90172726203 is an apocalyptic number.

90172726203 is a deficient number, since it is larger than the sum of its proper divisors (47233332805).

90172726203 is a wasteful number, since it uses less digits than its factorization.

90172726203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293939353.

The product of its (nonzero) digits is 63504, while the sum is 39.

The spelling of 90172726203 in words is "ninety billion, one hundred seventy-two million, seven hundred twenty-six thousand, two hundred three".