190172239023 has 16 divisors (see below), whose sum is σ = 273335338976. Its totient is φ = 116914423680.

The previous prime is 190172239001. The next prime is 190172239031. The reversal of 190172239023 is 320932271091.

It is not a de Polignac number, because 190172239023 - 2⁶ = 190172238959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190172232023) 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, 2348140 + ... + 2427777.

It is an arithmetic number, because the mean of its divisors is an integer number (17083458686).

Almost surely, 2^190172239023 is an apocalyptic number.

190172239023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

190172239023 is a deficient number, since it is larger than the sum of its proper divisors (83163099953).

190172239023 is a wasteful number, since it uses less digits than its factorization.

190172239023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776954.

The product of its (nonzero) digits is 40824, while the sum is 39.

The spelling of 190172239023 in words is "one hundred ninety billion, one hundred seventy-two million, two hundred thirty-nine thousand, twenty-three".