19072435139 has 2 divisors, whose sum is σ = 19072435140. Its totient is φ = 19072435138.

The previous prime is 19072435097. The next prime is 19072435159. The reversal of 19072435139 is 93153427091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19072435139 - 2⁸ = 19072434883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19072435139.

It is not a weakly prime, because it can be changed into another prime (19072435159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9536217569 + 9536217570.

It is an arithmetic number, because the mean of its divisors is an integer number (9536217570).

Almost surely, 2^19072435139 is an apocalyptic number.

19072435139 is a deficient number, since it is larger than the sum of its proper divisors (1).

19072435139 is an equidigital number, since it uses as much as digits as its factorization.

19072435139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 19072435139 in words is "nineteen billion, seventy-two million, four hundred thirty-five thousand, one hundred thirty-nine".