18498642400826 has 16 divisors (see below), whose sum is σ = 31730173238400. Its totient is φ = 7923435891120.

The previous prime is 18498642400817. The next prime is 18498642400853. The reversal of 18498642400826 is 62800424689481.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379450526 + ... + 379499273.

It is an arithmetic number, because the mean of its divisors is an integer number (1983135827400).

Almost surely, 2^{18498642400826} is an apocalyptic number.

18498642400826 is a deficient number, since it is larger than the sum of its proper divisors (13231530837574).

18498642400826 is a wasteful number, since it uses less digits than its factorization.

18498642400826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758951549.

The product of its (nonzero) digits is 42467328, while the sum is 62.

The spelling of 18498642400826 in words is "eighteen trillion, four hundred ninety-eight billion, six hundred forty-two million, four hundred thousand, eight hundred twenty-six".