18858467786676 has 144 divisors (see below), whose sum is σ = 53102371573440. Its totient is φ = 5187596789760.

The previous prime is 18858467786657. The next prime is 18858467786681. The reversal of 18858467786676 is 67668776485881.

It is a super-2 number, since 2×18858467786676² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (87).

It is a junction number, because it is equal to n+sod(n) for n = 18858467786592 and 18858467786601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4452871 + ... + 7585841.

It is an arithmetic number, because the mean of its divisors is an integer number (368766469260).

Almost surely, 2^{18858467786676} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18858467786676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26551185786720).

18858467786676 is an abundant number, since it is smaller than the sum of its proper divisors (34243903786764).

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

18858467786676 is a wasteful number, since it uses less digits than its factorization.

18858467786676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133374 (or 3133365 counting only the distinct ones).

The product of its digits is 36415733760, while the sum is 87.

The spelling of 18858467786676 in words is "eighteen trillion, eight hundred fifty-eight billion, four hundred sixty-seven million, seven hundred eighty-six thousand, six hundred seventy-six".