18492481869811 has 4 divisors (see below), whose sum is σ = 18505226517624. Its totient is φ = 18479737222000.

The previous prime is 18492481869787. The next prime is 18492481869887. The reversal of 18492481869811 is 11896818429481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18492481869811 - 2¹¹ = 18492481867763 is a prime.

It is a super-3 number, since 3×18492481869811³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18492481869611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6372321730 + ... + 6372324631.

It is an arithmetic number, because the mean of its divisors is an integer number (4626306629406).

Almost surely, 2^{18492481869811} is an apocalyptic number.

18492481869811 is a deficient number, since it is larger than the sum of its proper divisors (12744647813).

18492481869811 is a wasteful number, since it uses less digits than its factorization.

18492481869811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12744647812.

The product of its digits is 63700992, while the sum is 70.

The spelling of 18492481869811 in words is "eighteen trillion, four hundred ninety-two billion, four hundred eighty-one million, eight hundred sixty-nine thousand, eight hundred eleven".