195900290519 has 2 divisors, whose sum is σ = 195900290520. Its totient is φ = 195900290518.

The previous prime is 195900290503. The next prime is 195900290563. The reversal of 195900290519 is 915092009591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195900290519 - 2⁴ = 195900290503 is a prime.

It is a super-2 number, since 2×195900290519² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195900290569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97950145259 + 97950145260.

It is an arithmetic number, because the mean of its divisors is an integer number (97950145260).

Almost surely, 2^195900290519 is an apocalyptic number.

195900290519 is a deficient number, since it is larger than the sum of its proper divisors (1).

195900290519 is an equidigital number, since it uses as much as digits as its factorization.

195900290519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 328050, while the sum is 50.

The spelling of 195900290519 in words is "one hundred ninety-five billion, nine hundred million, two hundred ninety thousand, five hundred nineteen".