9873451495213 has 2 divisors, whose sum is σ = 9873451495214. Its totient is φ = 9873451495212.

The previous prime is 9873451495183. The next prime is 9873451495373. The reversal of 9873451495213 is 3125941543789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8813791252809 + 1059660242404 = 2968803^2 + 1029398^2 .

It is a cyclic number.

It is not a de Polignac number, because 9873451495213 - 2¹⁷ = 9873451364141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9873451495513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936725747606 + 4936725747607.

It is an arithmetic number, because the mean of its divisors is an integer number (4936725747607).

Almost surely, 2^{9873451495213} is an apocalyptic number.

It is an amenable number.

9873451495213 is a deficient number, since it is larger than the sum of its proper divisors (1).

9873451495213 is an equidigital number, since it uses as much as digits as its factorization.

9873451495213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 61.

The spelling of 9873451495213 in words is "nine trillion, eight hundred seventy-three billion, four hundred fifty-one million, four hundred ninety-five thousand, two hundred thirteen".