42918046799 has 2 divisors, whose sum is σ = 42918046800. Its totient is φ = 42918046798.

The previous prime is 42918046747. The next prime is 42918046837. The reversal of 42918046799 is 99764081924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42918046799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42918046399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21459023399 + 21459023400.

It is an arithmetic number, because the mean of its divisors is an integer number (21459023400).

Almost surely, 2^42918046799 is an apocalyptic number.

42918046799 is a deficient number, since it is larger than the sum of its proper divisors (1).

42918046799 is an equidigital number, since it uses as much as digits as its factorization.

42918046799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 42918046799 in words is "forty-two billion, nine hundred eighteen million, forty-six thousand, seven hundred ninety-nine".