15143728993 has 2 divisors, whose sum is σ = 15143728994. Its totient is φ = 15143728992.

The previous prime is 15143728987. The next prime is 15143729017. The reversal of 15143728993 is 39982734151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11736905569 + 3406823424 = 108337^2 + 58368^2 .

It is a cyclic number.

It is not a de Polignac number, because 15143728993 - 2²⁵ = 15110174561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15143728993.

It is not a weakly prime, because it can be changed into another prime (15143728903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571864496 + 7571864497.

It is an arithmetic number, because the mean of its divisors is an integer number (7571864497).

Almost surely, 2^15143728993 is an apocalyptic number.

It is an amenable number.

15143728993 is a deficient number, since it is larger than the sum of its proper divisors (1).

15143728993 is an equidigital number, since it uses as much as digits as its factorization.

15143728993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The spelling of 15143728993 in words is "fifteen billion, one hundred forty-three million, seven hundred twenty-eight thousand, nine hundred ninety-three".