42351400447 has 2 divisors, whose sum is σ = 42351400448. Its totient is φ = 42351400446.

The previous prime is 42351400439. The next prime is 42351400457. The reversal of 42351400447 is 74400415324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42351400447 - 2³ = 42351400439 is a prime.

It is a super-2 number, since 2×42351400447² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42351400457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21175700223 + 21175700224.

It is an arithmetic number, because the mean of its divisors is an integer number (21175700224).

Almost surely, 2^42351400447 is an apocalyptic number.

42351400447 is a deficient number, since it is larger than the sum of its proper divisors (1).

42351400447 is an equidigital number, since it uses as much as digits as its factorization.

42351400447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 42351400447 in words is "forty-two billion, three hundred fifty-one million, four hundred thousand, four hundred forty-seven".