189860262061 has 2 divisors, whose sum is σ = 189860262062. Its totient is φ = 189860262060.

The previous prime is 189860262043. The next prime is 189860262077. The reversal of 189860262061 is 160262068981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100178580100 + 89681681961 = 316510^2 + 299469^2 .

It is a cyclic number.

It is not a de Polignac number, because 189860262061 - 2¹⁷ = 189860130989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189860261996 and 189860262014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189860262001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94930131030 + 94930131031.

It is an arithmetic number, because the mean of its divisors is an integer number (94930131031).

Almost surely, 2^189860262061 is an apocalyptic number.

It is an amenable number.

189860262061 is a deficient number, since it is larger than the sum of its proper divisors (1).

189860262061 is an equidigital number, since it uses as much as digits as its factorization.

189860262061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 189860262061 in words is "one hundred eighty-nine billion, eight hundred sixty million, two hundred sixty-two thousand, sixty-one".