18151011814 has 16 divisors (see below), whose sum is σ = 29323091952. Its totient is φ = 8376753888.

The previous prime is 18151011803. The next prime is 18151011829. The reversal of 18151011814 is 41811015181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619377 + ... + 648019.

It is an arithmetic number, because the mean of its divisors is an integer number (1832693247).

Almost surely, 2^18151011814 is an apocalyptic number.

18151011814 is a deficient number, since it is larger than the sum of its proper divisors (11172080138).

18151011814 is a wasteful number, since it uses less digits than its factorization.

18151011814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53031.

The product of its (nonzero) digits is 1280, while the sum is 31.

Adding to 18151011814 its reverse (41811015181), we get a palindrome (59962026995).

The spelling of 18151011814 in words is "eighteen billion, one hundred fifty-one million, eleven thousand, eight hundred fourteen".