3887678326512 has 40 divisors (see below), whose sum is σ = 10389485186640. Its totient is φ = 1251206817280.

The previous prime is 3887678326507. The next prime is 3887678326517. The reversal of 3887678326512 is 2156238767883.

It is an interprime number because it is at equal distance from previous prime (3887678326507) and next prime (3887678326517).

It is a super-2 number, since 2×3887678326512² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887678326517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396434789 + ... + 1396437572.

It is an arithmetic number, because the mean of its divisors is an integer number (259737129666).

Almost surely, 2^{3887678326512} is an apocalyptic number.

It is an amenable number.

3887678326512 is an abundant number, since it is smaller than the sum of its proper divisors (6501806860128).

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

3887678326512 is a wasteful number, since it uses less digits than its factorization.

3887678326512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792872401 (or 2792872395 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 66.

The spelling of 3887678326512 in words is "three trillion, eight hundred eighty-seven billion, six hundred seventy-eight million, three hundred twenty-six thousand, five hundred twelve".