189179770453 has 16 divisors (see below), whose sum is σ = 207053913600. Its totient is φ = 172317822336.

The previous prime is 189179770427. The next prime is 189179770457. The reversal of 189179770453 is 354077971981.

It is not a de Polignac number, because 189179770453 - 2²¹ = 189177673301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189179770391 and 189179770400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189179770457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2324928 + ... + 2404921.

It is an arithmetic number, because the mean of its divisors is an integer number (12940869600).

Almost surely, 2^189179770453 is an apocalyptic number.

It is an amenable number.

189179770453 is a deficient number, since it is larger than the sum of its proper divisors (17874143147).

189179770453 is a wasteful number, since it uses less digits than its factorization.

189179770453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729956.

The product of its (nonzero) digits is 13335840, while the sum is 61.

The spelling of 189179770453 in words is "one hundred eighty-nine billion, one hundred seventy-nine million, seven hundred seventy thousand, four hundred fifty-three".