190707377689 has 2 divisors, whose sum is σ = 190707377690. Its totient is φ = 190707377688.

The previous prime is 190707377639. The next prime is 190707377711. The reversal of 190707377689 is 986773707091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170936768025 + 19770609664 = 413445^2 + 140608^2 .

It is an emirp because it is prime and its reverse (986773707091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190707377689 - 2⁹ = 190707377177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190707377689.

It is not a weakly prime, because it can be changed into another prime (190707377639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95353688844 + 95353688845.

It is an arithmetic number, because the mean of its divisors is an integer number (95353688845).

Almost surely, 2^190707377689 is an apocalyptic number.

It is an amenable number.

190707377689 is a deficient number, since it is larger than the sum of its proper divisors (1).

190707377689 is an equidigital number, since it uses as much as digits as its factorization.

190707377689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28005264, while the sum is 64.

The spelling of 190707377689 in words is "one hundred ninety billion, seven hundred seven million, three hundred seventy-seven thousand, six hundred eighty-nine".