189392279542 has 8 divisors (see below), whose sum is σ = 300799502856. Its totient is φ = 89125778592.

The previous prime is 189392279539. The next prime is 189392279633. The reversal of 189392279542 is 245972293981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2785180548 + ... + 2785180615.

It is an arithmetic number, because the mean of its divisors is an integer number (37599937857).

Almost surely, 2^189392279542 is an apocalyptic number.

189392279542 is a deficient number, since it is larger than the sum of its proper divisors (111407223314).

189392279542 is a wasteful number, since it uses less digits than its factorization.

189392279542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570361182.

The product of its digits is 19595520, while the sum is 61.

The spelling of 189392279542 in words is "one hundred eighty-nine billion, three hundred ninety-two million, two hundred seventy-nine thousand, five hundred forty-two".