42913383817 has 2 divisors, whose sum is σ = 42913383818. Its totient is φ = 42913383816.

The previous prime is 42913383749. The next prime is 42913383823. The reversal of 42913383817 is 71838331924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41069454336 + 1843929481 = 202656^2 + 42941^2 .

It is a cyclic number.

It is not a de Polignac number, because 42913383817 - 2¹¹ = 42913381769 is a prime.

It is not a weakly prime, because it can be changed into another prime (42913383017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21456691908 + 21456691909.

It is an arithmetic number, because the mean of its divisors is an integer number (21456691909).

Almost surely, 2^42913383817 is an apocalyptic number.

It is an amenable number.

42913383817 is a deficient number, since it is larger than the sum of its proper divisors (1).

42913383817 is an equidigital number, since it uses as much as digits as its factorization.

42913383817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The spelling of 42913383817 in words is "forty-two billion, nine hundred thirteen million, three hundred eighty-three thousand, eight hundred seventeen".