189457997126 has 16 divisors (see below), whose sum is σ = 284761293120. Its totient is φ = 94537759680.

The previous prime is 189457997101. The next prime is 189457997137. The reversal of 189457997126 is 621799754981.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951340 + ... + 2046128.

It is an arithmetic number, because the mean of its divisors is an integer number (17797580820).

Almost surely, 2^189457997126 is an apocalyptic number.

189457997126 is a deficient number, since it is larger than the sum of its proper divisors (95303295994).

189457997126 is a wasteful number, since it uses less digits than its factorization.

189457997126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96799.

The product of its digits is 68584320, while the sum is 68.

The spelling of 189457997126 in words is "one hundred eighty-nine billion, four hundred fifty-seven million, nine hundred ninety-seven thousand, one hundred twenty-six".