188974898669 has 4 divisors (see below), whose sum is σ = 188986355040. Its totient is φ = 188963442300.

The previous prime is 188974898633. The next prime is 188974898683. The reversal of 188974898669 is 966898479881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 188974898669 - 2¹⁶ = 188974833133 is a prime.

It is a super-2 number, since 2×188974898669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188974898069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5703407 + ... + 5736444.

It is an arithmetic number, because the mean of its divisors is an integer number (47246588760).

Almost surely, 2^188974898669 is an apocalyptic number.

It is an amenable number.

188974898669 is a deficient number, since it is larger than the sum of its proper divisors (11456371).

188974898669 is a wasteful number, since it uses less digits than its factorization.

188974898669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11456370.

The product of its digits is 3009871872, while the sum is 83.

The spelling of 188974898669 in words is "one hundred eighty-eight billion, nine hundred seventy-four million, eight hundred ninety-eight thousand, six hundred sixty-nine".