42403793129 has 2 divisors, whose sum is σ = 42403793130. Its totient is φ = 42403793128.

The previous prime is 42403793123. The next prime is 42403793149. The reversal of 42403793129 is 92139730424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25177755625 + 17226037504 = 158675^2 + 131248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42403793129 is a prime.

It is a super-2 number, since 2×42403793129² (a number of 22 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 42403793129.

It is not a weakly prime, because it can be changed into another prime (42403793123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201896564 + 21201896565.

It is an arithmetic number, because the mean of its divisors is an integer number (21201896565).

Almost surely, 2^42403793129 is an apocalyptic number.

It is an amenable number.

42403793129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42403793129 is an equidigital number, since it uses as much as digits as its factorization.

42403793129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 42403793129 in words is "forty-two billion, four hundred three million, seven hundred ninety-three thousand, one hundred twenty-nine".