189024969697 has 2 divisors, whose sum is σ = 189024969698. Its totient is φ = 189024969696.

The previous prime is 189024969673. The next prime is 189024969709. The reversal of 189024969697 is 796969420981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139027562496 + 49997407201 = 372864^2 + 223601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189024969697 is a prime.

It is not a weakly prime, because it can be changed into another prime (189024967697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94512484848 + 94512484849.

It is an arithmetic number, because the mean of its divisors is an integer number (94512484849).

Almost surely, 2^189024969697 is an apocalyptic number.

It is an amenable number.

189024969697 is a deficient number, since it is larger than the sum of its proper divisors (1).

189024969697 is an equidigital number, since it uses as much as digits as its factorization.

189024969697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105815808, while the sum is 70.

The spelling of 189024969697 in words is "one hundred eighty-nine billion, twenty-four million, nine hundred sixty-nine thousand, six hundred ninety-seven".