15137331535873 has 2 divisors, whose sum is σ = 15137331535874. Its totient is φ = 15137331535872.

The previous prime is 15137331535867. The next prime is 15137331535927. The reversal of 15137331535873 is 37853513373151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9437380609024 + 5699950926849 = 3072032^2 + 2387457^2 .

It is a cyclic number.

It is not a de Polignac number, because 15137331535873 - 2²⁵ = 15137297981441 is a prime.

It is not a weakly prime, because it can be changed into another prime (15137331539873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7568665767936 + 7568665767937.

It is an arithmetic number, because the mean of its divisors is an integer number (7568665767937).

Almost surely, 2^{15137331535873} is an apocalyptic number.

It is an amenable number.

15137331535873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15137331535873 is an equidigital number, since it uses as much as digits as its factorization.

15137331535873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11907000, while the sum is 55.

The spelling of 15137331535873 in words is "fifteen trillion, one hundred thirty-seven billion, three hundred thirty-one million, five hundred thirty-five thousand, eight hundred seventy-three".