42429413639 has 2 divisors, whose sum is σ = 42429413640. Its totient is φ = 42429413638.

The previous prime is 42429413597. The next prime is 42429413651. The reversal of 42429413639 is 93631492424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42429413639 - 2¹⁶ = 42429348103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42429413593 and 42429413602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42428413639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21214706819 + 21214706820.

It is an arithmetic number, because the mean of its divisors is an integer number (21214706820).

Almost surely, 2^42429413639 is an apocalyptic number.

42429413639 is a deficient number, since it is larger than the sum of its proper divisors (1).

42429413639 is an equidigital number, since it uses as much as digits as its factorization.

42429413639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 47.

The spelling of 42429413639 in words is "forty-two billion, four hundred twenty-nine million, four hundred thirteen thousand, six hundred thirty-nine".