189469139440926 has 16 divisors (see below), whose sum is σ = 378948545038224. Its totient is φ = 63154668787584.

The previous prime is 189469139440877. The next prime is 189469139440951. The reversal of 189469139440926 is 629044931964981.

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, 427516581 + ... + 427959536.

It is an arithmetic number, because the mean of its divisors is an integer number (23684284064889).

Almost surely, 2^{189469139440926} is an apocalyptic number.

189469139440926 is an abundant number, since it is smaller than the sum of its proper divisors (189479405597298).

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

189469139440926 is a wasteful number, since it uses less digits than its factorization.

189469139440926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855513035.

The product of its (nonzero) digits is 725594112, while the sum is 75.

The spelling of 189469139440926 in words is "one hundred eighty-nine trillion, four hundred sixty-nine billion, one hundred thirty-nine million, four hundred forty thousand, nine hundred twenty-six".