18826341499 has 16 divisors (see below), whose sum is σ = 21969304000. Its totient is φ = 16126290432.

The previous prime is 18826341491. The next prime is 18826341529. The reversal of 18826341499 is 99414362881.

It is not a de Polignac number, because 18826341499 - 2³ = 18826341491 is a prime.

It is a super-2 number, since 2×18826341499² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18826341491) 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, 530587 + ... + 564955.

It is an arithmetic number, because the mean of its divisors is an integer number (1373081500).

Almost surely, 2^18826341499 is an apocalyptic number.

18826341499 is a deficient number, since it is larger than the sum of its proper divisors (3142962501).

18826341499 is an equidigital number, since it uses as much as digits as its factorization.

18826341499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35987 (or 35973 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The spelling of 18826341499 in words is "eighteen billion, eight hundred twenty-six million, three hundred forty-one thousand, four hundred ninety-nine".