15436140023 has 2 divisors, whose sum is σ = 15436140024. Its totient is φ = 15436140022.

The previous prime is 15436139987. The next prime is 15436140067. The reversal of 15436140023 is 32004163451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15436140023 - 2⁶ = 15436139959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15436140073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7718070011 + 7718070012.

It is an arithmetic number, because the mean of its divisors is an integer number (7718070012).

Almost surely, 2^15436140023 is an apocalyptic number.

15436140023 is a deficient number, since it is larger than the sum of its proper divisors (1).

15436140023 is an equidigital number, since it uses as much as digits as its factorization.

15436140023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 15436140023 in words is "fifteen billion, four hundred thirty-six million, one hundred forty thousand, twenty-three".