42401413433 has 2 divisors, whose sum is σ = 42401413434. Its totient is φ = 42401413432.

The previous prime is 42401413427. The next prime is 42401413459. The reversal of 42401413433 is 33431410424.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39621698704 + 2779714729 = 199052^2 + 52723^2 .

It is a cyclic number.

It is not a de Polignac number, because 42401413433 - 2⁸ = 42401413177 is a prime.

It is a super-2 number, since 2×42401413433² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42401413396 and 42401413405.

It is not a weakly prime, because it can be changed into another prime (42401413463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200706716 + 21200706717.

It is an arithmetic number, because the mean of its divisors is an integer number (21200706717).

Almost surely, 2^42401413433 is an apocalyptic number.

It is an amenable number.

42401413433 is a deficient number, since it is larger than the sum of its proper divisors (1).

42401413433 is an equidigital number, since it uses as much as digits as its factorization.

42401413433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 42401413433 its reverse (33431410424), we get a palindrome (75832823857).

The spelling of 42401413433 in words is "forty-two billion, four hundred one million, four hundred thirteen thousand, four hundred thirty-three".