189705359053 has 4 divisors (see below), whose sum is σ = 216806124640. Its totient is φ = 162604593468.

The previous prime is 189705359033. The next prime is 189705359069. The reversal of 189705359053 is 350953507981.

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: 350953507981 = 223 ⋅1573782547.

It is a cyclic number.

It is not a de Polignac number, because 189705359053 - 2¹⁷ = 189705227981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189705358985 and 189705359003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189705359033) 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, 13550382783 + ... + 13550382796.

It is an arithmetic number, because the mean of its divisors is an integer number (54201531160).

Almost surely, 2^189705359053 is an apocalyptic number.

It is an amenable number.

189705359053 is a deficient number, since it is larger than the sum of its proper divisors (27100765587).

189705359053 is an equidigital number, since it uses as much as digits as its factorization.

189705359053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27100765586.

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 189705359053 in words is "one hundred eighty-nine billion, seven hundred five million, three hundred fifty-nine thousand, fifty-three".