19152257819 has 2 divisors, whose sum is σ = 19152257820. Its totient is φ = 19152257818.

The previous prime is 19152257737. The next prime is 19152257821. The reversal of 19152257819 is 91875225191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19152257819 - 2⁸ = 19152257563 is a prime.

It is a super-2 number, since 2×19152257819² (a number of 21 digits) contains 22 as substring.

Together with 19152257821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19152257899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9576128909 + 9576128910.

It is an arithmetic number, because the mean of its divisors is an integer number (9576128910).

Almost surely, 2^19152257819 is an apocalyptic number.

19152257819 is a deficient number, since it is larger than the sum of its proper divisors (1).

19152257819 is an equidigital number, since it uses as much as digits as its factorization.

19152257819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 50.

The spelling of 19152257819 in words is "nineteen billion, one hundred fifty-two million, two hundred fifty-seven thousand, eight hundred nineteen".