1812429135429 has 32 divisors (see below), whose sum is σ = 2700717078528. Its totient is φ = 1071588144000.

The previous prime is 1812429135383. The next prime is 1812429135437. The reversal of 1812429135429 is 9245319242181.

It is not a de Polignac number, because 1812429135429 - 2⁸ = 1812429135173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812429135479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34370974 + ... + 34423664.

It is an arithmetic number, because the mean of its divisors is an integer number (84397408704).

Almost surely, 2^{1812429135429} is an apocalyptic number.

It is an amenable number.

1812429135429 is a deficient number, since it is larger than the sum of its proper divisors (888287943099).

1812429135429 is a wasteful number, since it uses less digits than its factorization.

1812429135429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78169.

The product of its digits is 1244160, while the sum is 51.

The spelling of 1812429135429 in words is "one trillion, eight hundred twelve billion, four hundred twenty-nine million, one hundred thirty-five thousand, four hundred twenty-nine".