189112862501 has 4 divisors (see below), whose sum is σ = 192681029772. Its totient is φ = 185544695232.

The previous prime is 189112862467. The next prime is 189112862611. The reversal of 189112862501 is 105268211981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105268211981 = 67 ⋅1571167343.

It can be written as a sum of positive squares in 2 ways, for example, as 160039202401 + 29073660100 = 400049^2 + 170510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189112862501 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 (189112862201) 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, 1784083556 + ... + 1784083661.

It is an arithmetic number, because the mean of its divisors is an integer number (48170257443).

Almost surely, 2^189112862501 is an apocalyptic number.

It is an amenable number.

189112862501 is a deficient number, since it is larger than the sum of its proper divisors (3568167271).

189112862501 is an equidigital number, since it uses as much as digits as its factorization.

189112862501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568167270.

The product of its (nonzero) digits is 69120, while the sum is 44.

The spelling of 189112862501 in words is "one hundred eighty-nine billion, one hundred twelve million, eight hundred sixty-two thousand, five hundred one".