6426999429 has 16 divisors (see below), whose sum is σ = 8805350400. Its totient is φ = 4167492336.

The previous prime is 6426999427. The next prime is 6426999431. The reversal of 6426999429 is 9249996246.

It is an interprime number because it is at equal distance from previous prime (6426999427) and next prime (6426999431).

It is not a de Polignac number, because 6426999429 - 2¹ = 6426999427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426999421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73399 + ... + 135060.

It is an arithmetic number, because the mean of its divisors is an integer number (550334400).

Almost surely, 2^6426999429 is an apocalyptic number.

It is an amenable number.

6426999429 is a deficient number, since it is larger than the sum of its proper divisors (2378350971).

6426999429 is a wasteful number, since it uses less digits than its factorization.

6426999429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208744.

The product of its digits is 15116544, while the sum is 60.

The square root of 6426999429 is about 80168.5688346749. The cubic root of 6426999429 is about 1859.2427091150.

The spelling of 6426999429 in words is "six billion, four hundred twenty-six million, nine hundred ninety-nine thousand, four hundred twenty-nine".