42402244424399 has 2 divisors, whose sum is σ = 42402244424400. Its totient is φ = 42402244424398.

The previous prime is 42402244424377. The next prime is 42402244424453. The reversal of 42402244424399 is 99342444220424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42402244424399 - 2²⁰ = 42402243375823 is a prime.

It is a super-2 number, since 2×42402244424399² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42402244424399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42402244424359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201122212199 + 21201122212200.

It is an arithmetic number, because the mean of its divisors is an integer number (21201122212200).

Almost surely, 2^{42402244424399} is an apocalyptic number.

42402244424399 is a deficient number, since it is larger than the sum of its proper divisors (1).

42402244424399 is an equidigital number, since it uses as much as digits as its factorization.

42402244424399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15925248, while the sum is 53.

The spelling of 42402244424399 in words is "forty-two trillion, four hundred two billion, two hundred forty-four million, four hundred twenty-four thousand, three hundred ninety-nine".