18414071237 has 16 divisors (see below), whose sum is σ = 20222533872. Its totient is φ = 16695475200.

The previous prime is 18414071233. The next prime is 18414071267. The reversal of 18414071237 is 73217041481.

It can be written as a sum of positive squares in 8 ways, for example, as 4349534401 + 14064536836 = 65951^2 + 118594^2 .

It is a cyclic number.

It is not a de Polignac number, because 18414071237 - 2² = 18414071233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18414071237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18414071231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81398 + ... + 208455.

It is an arithmetic number, because the mean of its divisors is an integer number (1263908367).

Almost surely, 2^18414071237 is an apocalyptic number.

18414071237 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18414071237 is a deficient number, since it is larger than the sum of its proper divisors (1808462635).

18414071237 is a wasteful number, since it uses less digits than its factorization.

18414071237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290008.

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 18414071237 in words is "eighteen billion, four hundred fourteen million, seventy-one thousand, two hundred thirty-seven".