18196676748 has 72 divisors (see below), whose sum is σ = 47849583600. Its totient is φ = 5823624576.

The previous prime is 18196676741. The next prime is 18196676749. The reversal of 18196676748 is 84767669181.

It is a super-2 number, since 2×18196676748² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18196676741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138190 + ... + 235562.

It is an arithmetic number, because the mean of its divisors is an integer number (664577550).

Almost surely, 2^18196676748 is an apocalyptic number.

18196676748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18196676748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23924791800).

18196676748 is an abundant number, since it is smaller than the sum of its proper divisors (29652906852).

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

18196676748 is a wasteful number, since it uses less digits than its factorization.

18196676748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97591 (or 97586 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 18196676748 in words is "eighteen billion, one hundred ninety-six million, six hundred seventy-six thousand, seven hundred forty-eight".