20192019413 has 2 divisors, whose sum is σ = 20192019414. Its totient is φ = 20192019412.

The previous prime is 20192019409. The next prime is 20192019427. The reversal of 20192019413 is 31491029102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20157468529 + 34550884 = 141977^2 + 5878^2 .

It is a cyclic number.

It is not a de Polignac number, because 20192019413 - 2² = 20192019409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20192019413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20192019613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10096009706 + 10096009707.

It is an arithmetic number, because the mean of its divisors is an integer number (10096009707).

Almost surely, 2^20192019413 is an apocalyptic number.

It is an amenable number.

20192019413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20192019413 is an equidigital number, since it uses as much as digits as its factorization.

20192019413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 20192019413 in words is "twenty billion, one hundred ninety-two million, nineteen thousand, four hundred thirteen".