189753402164 has 6 divisors (see below), whose sum is σ = 332068453794. Its totient is φ = 94876701080.

The previous prime is 189753402151. The next prime is 189753402197. The reversal of 189753402164 is 461204357981.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 166798728100 + 22954674064 = 408410^2 + 151508^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23719175267 + ... + 23719175274.

It is an arithmetic number, because the mean of its divisors is an integer number (55344742299).

It is a 1-persistent number, because it is pandigital, but 2⋅189753402164 = 379506804328 is not.

Almost surely, 2^189753402164 is an apocalyptic number.

It is an amenable number.

189753402164 is a deficient number, since it is larger than the sum of its proper divisors (142315051630).

189753402164 is a wasteful number, since it uses less digits than its factorization.

189753402164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47438350545 (or 47438350543 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 189753402164 in words is "one hundred eighty-nine billion, seven hundred fifty-three million, four hundred two thousand, one hundred sixty-four".