2431981793 has 2 divisors, whose sum is σ = 2431981794. Its totient is φ = 2431981792.

The previous prime is 2431981781. The next prime is 2431981823. The reversal of 2431981793 is 3971891342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2317748449 + 114233344 = 48143^2 + 10688^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431981793 - 2²⁰ = 2430933217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2431981753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215990896 + 1215990897.

It is an arithmetic number, because the mean of its divisors is an integer number (1215990897).

Almost surely, 2^2431981793 is an apocalyptic number.

It is an amenable number.

2431981793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431981793 is an equidigital number, since it uses as much as digits as its factorization.

2431981793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 2431981793 is about 49315.1274255679. The cubic root of 2431981793 is about 1344.7868068183.

The spelling of 2431981793 in words is "two billion, four hundred thirty-one million, nine hundred eighty-one thousand, seven hundred ninety-three".