189513692552 has 12 divisors (see below), whose sum is σ = 355340482245. Its totient is φ = 94756230624.

The previous prime is 189513692521. The next prime is 189513692591. The reversal of 189513692552 is 255296315981.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 137645452036 + 51868240516 = 371006^2 + 227746^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=307826.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1154348 + ... + 1308260.

Almost surely, 2^189513692552 is an apocalyptic number.

It is an amenable number.

189513692552 is a deficient number, since it is larger than the sum of its proper divisors (165826789693).

189513692552 is an frugal number, since it uses more digits than its factorization.

189513692552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307832 (or 153915 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 56.

The spelling of 189513692552 in words is "one hundred eighty-nine billion, five hundred thirteen million, six hundred ninety-two thousand, five hundred fifty-two".