15189156019 has 2 divisors, whose sum is σ = 15189156020. Its totient is φ = 15189156018.

The previous prime is 15189155941. The next prime is 15189156053. The reversal of 15189156019 is 91065198151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15189156019 - 2²³ = 15180767411 is a prime.

It is a super-2 number, since 2×15189156019² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15189156019.

It is not a weakly prime, because it can be changed into another prime (15189156079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7594578009 + 7594578010.

It is an arithmetic number, because the mean of its divisors is an integer number (7594578010).

Almost surely, 2^15189156019 is an apocalyptic number.

15189156019 is a deficient number, since it is larger than the sum of its proper divisors (1).

15189156019 is an equidigital number, since it uses as much as digits as its factorization.

15189156019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 46.

The spelling of 15189156019 in words is "fifteen billion, one hundred eighty-nine million, one hundred fifty-six thousand, nineteen".