188934621725 has 6 divisors (see below), whose sum is σ = 234278930970. Its totient is φ = 151147697360.

The previous prime is 188934621671. The next prime is 188934621829. The reversal of 188934621725 is 527126439881.

It can be written as a sum of positive squares in 3 ways, for example, as 32760276004 + 156174345721 = 180998^2 + 395189^2 .

It is not a de Polignac number, because 188934621725 - 2⁶ = 188934621661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3778692410 + ... + 3778692459.

It is an arithmetic number, because the mean of its divisors is an integer number (39046488495).

Almost surely, 2^188934621725 is an apocalyptic number.

It is an amenable number.

188934621725 is a deficient number, since it is larger than the sum of its proper divisors (45344309245).

188934621725 is an equidigital number, since it uses as much as digits as its factorization.

188934621725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557384879 (or 7557384874 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The spelling of 188934621725 in words is "one hundred eighty-eight billion, nine hundred thirty-four million, six hundred twenty-one thousand, seven hundred twenty-five".