1873031873213 has 2 divisors, whose sum is σ = 1873031873214. Its totient is φ = 1873031873212.

The previous prime is 1873031873189. The next prime is 1873031873243. The reversal of 1873031873213 is 3123781303781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1073041159129 + 799990714084 = 1035877^2 + 894422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1873031873213 - 2²² = 1873027678909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1873031873243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936515936606 + 936515936607.

It is an arithmetic number, because the mean of its divisors is an integer number (936515936607).

Almost surely, 2^{1873031873213} is an apocalyptic number.

It is an amenable number.

1873031873213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1873031873213 is an equidigital number, since it uses as much as digits as its factorization.

1873031873213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 1873031873213 in words is "one trillion, eight hundred seventy-three billion, thirty-one million, eight hundred seventy-three thousand, two hundred thirteen".