3686881492674 has 96 divisors (see below), whose sum is σ = 8758884685824. Its totient is φ = 1115779691520.

The previous prime is 3686881492649. The next prime is 3686881492741. The reversal of 3686881492674 is 4762941886863.

3686881492674 is a `hidden beast` number, since 3 + 6 + 8 + 68 + 8 + 1 + 492 + 6 + 74 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2348247 + ... + 3589989.

It is an arithmetic number, because the mean of its divisors is an integer number (91238382144).

Almost surely, 2^{3686881492674} is an apocalyptic number.

3686881492674 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3686881492674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4379442342912).

3686881492674 is an abundant number, since it is smaller than the sum of its proper divisors (5072003193150).

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

3686881492674 is a wasteful number, since it uses less digits than its factorization.

3686881492674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242112 (or 1242109 counting only the distinct ones).

The product of its digits is 668860416, while the sum is 72.

The spelling of 3686881492674 in words is "three trillion, six hundred eighty-six billion, eight hundred eighty-one million, four hundred ninety-two thousand, six hundred seventy-four".