190393970863 has 2 divisors, whose sum is σ = 190393970864. Its totient is φ = 190393970862.

The previous prime is 190393970843. The next prime is 190393970999. The reversal of 190393970863 is 368079393091.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190393970863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190393970798 and 190393970807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190393970843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95196985431 + 95196985432.

It is an arithmetic number, because the mean of its divisors is an integer number (95196985432).

Almost surely, 2^190393970863 is an apocalyptic number.

190393970863 is a deficient number, since it is larger than the sum of its proper divisors (1).

190393970863 is an equidigital number, since it uses as much as digits as its factorization.

190393970863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6613488, while the sum is 58.

The spelling of 190393970863 in words is "one hundred ninety billion, three hundred ninety-three million, nine hundred seventy thousand, eight hundred sixty-three".