189406772659 has 8 divisors (see below), whose sum is σ = 204184042272. Its totient is φ = 174659148480.

The previous prime is 189406772657. The next prime is 189406772693. The reversal of 189406772659 is 956277604981.

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

It is a cyclic number.

It is not a de Polignac number, because 189406772659 - 2¹ = 189406772657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189406772659.

It is not an unprimeable number, because it can be changed into a prime (189406772657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7398082 + ... + 7423639.

It is an arithmetic number, because the mean of its divisors is an integer number (25523005284).

Almost surely, 2^189406772659 is an apocalyptic number.

189406772659 is a deficient number, since it is larger than the sum of its proper divisors (14777269613).

189406772659 is a wasteful number, since it uses less digits than its factorization.

189406772659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14822717.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 189406772659 in words is "one hundred eighty-nine billion, four hundred six million, seven hundred seventy-two thousand, six hundred fifty-nine".