3861867326736 has 20 divisors (see below), whose sum is σ = 9976490594192. Its totient is φ = 1287289108896.

The previous prime is 3861867326719. The next prime is 3861867326791. The reversal of 3861867326736 is 6376237681683.

It is a super-2 number, since 2×3861867326736² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40227784606 + ... + 40227784701.

Almost surely, 2^{3861867326736} is an apocalyptic number.

It is an amenable number.

3861867326736 is an abundant number, since it is smaller than the sum of its proper divisors (6114623267456).

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

3861867326736 is a wasteful number, since it uses less digits than its factorization.

3861867326736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80455569318 (or 80455569312 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 66.

The spelling of 3861867326736 in words is "three trillion, eight hundred sixty-one billion, eight hundred sixty-seven million, three hundred twenty-six thousand, seven hundred thirty-six".