18811797246 has 48 divisors (see below), whose sum is σ = 44628450048. Its totient is φ = 5679493200.

The previous prime is 18811797233. The next prime is 18811797247. The reversal of 18811797246 is 64279711881.

It is a super-2 number, since 2×18811797246² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18811797192 and 18811797201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18811797247) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 121636 + ... + 228951.

It is an arithmetic number, because the mean of its divisors is an integer number (929759376).

Almost surely, 2^18811797246 is an apocalyptic number.

18811797246 is an abundant number, since it is smaller than the sum of its proper divisors (25816652802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18811797246 is a wasteful number, since it uses less digits than its factorization.

18811797246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350877 (or 350874 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 54.

The spelling of 18811797246 in words is "eighteen billion, eight hundred eleven million, seven hundred ninety-seven thousand, two hundred forty-six".