18950826243 has 32 divisors (see below), whose sum is σ = 26960117760. Its totient is φ = 11820233600.

The previous prime is 18950826229. The next prime is 18950826247. The reversal of 18950826243 is 34262805981.

It is a Cunningham number, because it is equal to 137662²-1.

It is a cyclic number.

It is not a de Polignac number, because 18950826243 - 2¹⁴ = 18950809859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18950826192 and 18950826201.

It is not an unprimeable number, because it can be changed into a prime (18950826247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390046 + ... + 435932.

It is an arithmetic number, because the mean of its divisors is an integer number (842503680).

Almost surely, 2^18950826243 is an apocalyptic number.

18950826243 is a deficient number, since it is larger than the sum of its proper divisors (8009291517).

18950826243 is a wasteful number, since it uses less digits than its factorization.

18950826243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46067.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 18950826243 in words is "eighteen billion, nine hundred fifty million, eight hundred twenty-six thousand, two hundred forty-three".