199719236707 has 2 divisors, whose sum is σ = 199719236708. Its totient is φ = 199719236706.

The previous prime is 199719236677. The next prime is 199719236719. The reversal of 199719236707 is 707632917991.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199719236707 is a prime.

It is not a weakly prime, because it can be changed into another prime (199719236797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99859618353 + 99859618354.

It is an arithmetic number, because the mean of its divisors is an integer number (99859618354).

Almost surely, 2^199719236707 is an apocalyptic number.

199719236707 is a deficient number, since it is larger than the sum of its proper divisors (1).

199719236707 is an equidigital number, since it uses as much as digits as its factorization.

199719236707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9001692, while the sum is 61.

The spelling of 199719236707 in words is "one hundred ninety-nine billion, seven hundred nineteen million, two hundred thirty-six thousand, seven hundred seven".