15157945919 has 2 divisors, whose sum is σ = 15157945920. Its totient is φ = 15157945918.

The previous prime is 15157945903. The next prime is 15157945931. The reversal of 15157945919 is 91954975151.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15157945919 - 2⁴ = 15157945903 is a prime.

It is a super-2 number, since 2×15157945919² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15157945949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7578972959 + 7578972960.

It is an arithmetic number, because the mean of its divisors is an integer number (7578972960).

Almost surely, 2^15157945919 is an apocalyptic number.

15157945919 is a deficient number, since it is larger than the sum of its proper divisors (1).

15157945919 is an equidigital number, since it uses as much as digits as its factorization.

15157945919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2551500, while the sum is 56.

The spelling of 15157945919 in words is "fifteen billion, one hundred fifty-seven million, nine hundred forty-five thousand, nine hundred nineteen".