18067396829 has 4 divisors (see below), whose sum is σ = 18079884384. Its totient is φ = 18054909276.

The previous prime is 18067396819. The next prime is 18067396847. The reversal of 18067396829 is 92869376081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18067396829 - 2⁸ = 18067396573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18067396819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241607 + ... + 6244500.

It is an arithmetic number, because the mean of its divisors is an integer number (4519971096).

Almost surely, 2^18067396829 is an apocalyptic number.

It is an amenable number.

18067396829 is a deficient number, since it is larger than the sum of its proper divisors (12487555).

18067396829 is a wasteful number, since it uses less digits than its factorization.

18067396829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487554.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 18067396829 in words is "eighteen billion, sixty-seven million, three hundred ninety-six thousand, eight hundred twenty-nine".