31841480819 has 2 divisors, whose sum is σ = 31841480820. Its totient is φ = 31841480818.

The previous prime is 31841480753. The next prime is 31841480851. The reversal of 31841480819 is 91808414813.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31841480819 is a prime.

It is a super-2 number, since 2×31841480819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31841486819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15920740409 + 15920740410.

It is an arithmetic number, because the mean of its divisors is an integer number (15920740410).

Almost surely, 2^31841480819 is an apocalyptic number.

31841480819 is a deficient number, since it is larger than the sum of its proper divisors (1).

31841480819 is an equidigital number, since it uses as much as digits as its factorization.

31841480819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 31841480819 in words is "thirty-one billion, eight hundred forty-one million, four hundred eighty thousand, eight hundred nineteen".