18134278029 has 32 divisors (see below), whose sum is σ = 32509635840. Its totient is φ = 9752887296.

The previous prime is 18134278027. The next prime is 18134278039. The reversal of 18134278029 is 92087243181.

It is a happy number.

It is not a de Polignac number, because 18134278029 - 2¹ = 18134278027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18134278027) 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, 2818804 + ... + 2825229.

It is an arithmetic number, because the mean of its divisors is an integer number (1015926120).

Almost surely, 2^18134278029 is an apocalyptic number.

It is an amenable number.

18134278029 is a deficient number, since it is larger than the sum of its proper divisors (14375357811).

18134278029 is a wasteful number, since it uses less digits than its factorization.

18134278029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644066 (or 5644060 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 18134278029 in words is "eighteen billion, one hundred thirty-four million, two hundred seventy-eight thousand, twenty-nine".