18134351236 has 12 divisors (see below), whose sum is σ = 31838488528. Its totient is φ = 9037640232.

The previous prime is 18134351233. The next prime is 18134351243. The reversal of 18134351236 is 63215343181.

It is a super-2 number, since 2×18134351236² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18134351195 and 18134351204.

It is not an unprimeable number, because it can be changed into a prime (18134351233) 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, 7382466 + ... + 7384921.

Almost surely, 2^18134351236 is an apocalyptic number.

It is an amenable number.

18134351236 is a deficient number, since it is larger than the sum of its proper divisors (13704137292).

18134351236 is a wasteful number, since it uses less digits than its factorization.

18134351236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14767698 (or 14767696 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

It can be divided in two parts, 18134 and 351236, that added together give a triangular number (369370 = T₈₅₉).

The spelling of 18134351236 in words is "eighteen billion, one hundred thirty-four million, three hundred fifty-one thousand, two hundred thirty-six".