18143537354 has 8 divisors (see below), whose sum is σ = 27274342788. Its totient is φ = 9052089760.

The previous prime is 18143537303. The next prime is 18143537371. The reversal of 18143537354 is 45373534181.

It can be written as a sum of positive squares in 2 ways, for example, as 16593304225 + 1550233129 = 128815^2 + 39373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9838307 + ... + 9840150.

Almost surely, 2^18143537354 is an apocalyptic number.

18143537354 is a deficient number, since it is larger than the sum of its proper divisors (9130805434).

18143537354 is a wasteful number, since it uses less digits than its factorization.

18143537354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19678920.

The product of its digits is 604800, while the sum is 44.

The spelling of 18143537354 in words is "eighteen billion, one hundred forty-three million, five hundred thirty-seven thousand, three hundred fifty-four".