190023125904 has 160 divisors (see below), whose sum is σ = 557593597440. Its totient is φ = 61931962368.

The previous prime is 190023125899. The next prime is 190023125923. The reversal of 190023125904 is 409521320091.

It is a super-2 number, since 2×190023125904² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23406454 + ... + 23414570.

It is an arithmetic number, because the mean of its divisors is an integer number (3484959984).

Almost surely, 2^190023125904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190023125904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278796798720).

190023125904 is an abundant number, since it is smaller than the sum of its proper divisors (367570471536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190023125904 is a wasteful number, since it uses less digits than its factorization.

190023125904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9334 (or 9322 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 190023125904 its reverse (409521320091), we get a palindrome (599544445995).

The spelling of 190023125904 in words is "one hundred ninety billion, twenty-three million, one hundred twenty-five thousand, nine hundred four".