12913571873 has 2 divisors, whose sum is σ = 12913571874. Its totient is φ = 12913571872.

The previous prime is 12913571851. The next prime is 12913571911. The reversal of 12913571873 is 37817531921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11046640609 + 1866931264 = 105103^2 + 43208^2 .

It is a cyclic number.

It is not a de Polignac number, because 12913571873 - 2¹⁴ = 12913555489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12913571173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6456785936 + 6456785937.

It is an arithmetic number, because the mean of its divisors is an integer number (6456785937).

Almost surely, 2^12913571873 is an apocalyptic number.

It is an amenable number.

12913571873 is a deficient number, since it is larger than the sum of its proper divisors (1).

12913571873 is an equidigital number, since it uses as much as digits as its factorization.

12913571873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The spelling of 12913571873 in words is "twelve billion, nine hundred thirteen million, five hundred seventy-one thousand, eight hundred seventy-three".