429139797427 has 32 divisors (see below), whose sum is σ = 480832070400. Its totient is φ = 379631616000.

The previous prime is 429139797397. The next prime is 429139797439. The reversal of 429139797427 is 724797931924.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 429139797427 - 2¹⁵ = 429139764659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (429139717427) 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 in 31 ways as a sum of consecutive naturals, for example, 206217027 + ... + 206219107.

It is an arithmetic number, because the mean of its divisors is an integer number (15026002200).

Almost surely, 2^429139797427 is an apocalyptic number.

429139797427 is a deficient number, since it is larger than the sum of its proper divisors (51692272973).

429139797427 is a wasteful number, since it uses less digits than its factorization.

429139797427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555.

The product of its digits is 48009024, while the sum is 64.

The spelling of 429139797427 in words is "four hundred twenty-nine billion, one hundred thirty-nine million, seven hundred ninety-seven thousand, four hundred twenty-seven".