189460547093 has 4 divisors (see below), whose sum is σ = 197697962208. Its totient is φ = 181223131980.

The previous prime is 189460547057. The next prime is 189460547123. The reversal of 189460547093 is 390745064981.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390745064981 = 1697 ⋅230256373.

It is a cyclic number.

It is not a de Polignac number, because 189460547093 - 2⁸ = 189460546837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189460547033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4118707523 + ... + 4118707568.

It is an arithmetic number, because the mean of its divisors is an integer number (49424490552).

Almost surely, 2^189460547093 is an apocalyptic number.

It is an amenable number.

189460547093 is a deficient number, since it is larger than the sum of its proper divisors (8237415115).

189460547093 is an equidigital number, since it uses as much as digits as its factorization.

189460547093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8237415114.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 189460547093 in words is "one hundred eighty-nine billion, four hundred sixty million, five hundred forty-seven thousand, ninety-three".