189341278797 has 144 divisors (see below), whose sum is σ = 305523326976. Its totient is φ = 104093035200.

The previous prime is 189341278787. The next prime is 189341278813. The reversal of 189341278797 is 797872143981.

It is not a de Polignac number, because 189341278797 - 2⁴ = 189341278781 is a prime.

Its product of digits (42674688) is a multiple of the sum of its prime factors (588).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189341278757) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 515916108 + ... + 515916474.

Almost surely, 2^189341278797 is an apocalyptic number.

It is an amenable number.

189341278797 is a deficient number, since it is larger than the sum of its proper divisors (116182048179).

189341278797 is a wasteful number, since it uses less digits than its factorization.

189341278797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 558 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 66.

The spelling of 189341278797 in words is "one hundred eighty-nine billion, three hundred forty-one million, two hundred seventy-eight thousand, seven hundred ninety-seven".