190388838797 has 2 divisors, whose sum is σ = 190388838798. Its totient is φ = 190388838796.

The previous prime is 190388838737. The next prime is 190388838839. The reversal of 190388838797 is 797838883091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101573514436 + 88815324361 = 318706^2 + 298019^2 .

It is an emirp because it is prime and its reverse (797838883091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190388838797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190388838797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190388838727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95194419398 + 95194419399.

It is an arithmetic number, because the mean of its divisors is an integer number (95194419399).

Almost surely, 2^190388838797 is an apocalyptic number.

It is an amenable number.

190388838797 is a deficient number, since it is larger than the sum of its proper divisors (1).

190388838797 is an equidigital number, since it uses as much as digits as its factorization.

190388838797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 146313216, while the sum is 71.

The spelling of 190388838797 in words is "one hundred ninety billion, three hundred eighty-eight million, eight hundred thirty-eight thousand, seven hundred ninety-seven".