15157871572873 has 2 divisors, whose sum is σ = 15157871572874. Its totient is φ = 15157871572872.

The previous prime is 15157871572829. The next prime is 15157871572903. The reversal of 15157871572873 is 37827517875151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14653369632784 + 504501940089 = 3827972^2 + 710283^2 .

It is a cyclic number.

It is not a de Polignac number, because 15157871572873 - 2¹³ = 15157871564681 is a prime.

It is a super-2 number, since 2×15157871572873² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15157871572799 and 15157871572808.

It is not a weakly prime, because it can be changed into another prime (15157871572673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7578935786436 + 7578935786437.

It is an arithmetic number, because the mean of its divisors is an integer number (7578935786437).

Almost surely, 2^{15157871572873} is an apocalyptic number.

It is an amenable number.

15157871572873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15157871572873 is an equidigital number, since it uses as much as digits as its factorization.

15157871572873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115248000, while the sum is 67.

The spelling of 15157871572873 in words is "fifteen trillion, one hundred fifty-seven billion, eight hundred seventy-one million, five hundred seventy-two thousand, eight hundred seventy-three".