3871515812452 has 24 divisors (see below), whose sum is σ = 6905225134080. Its totient is φ = 1898936867520.

The previous prime is 3871515812431. The next prime is 3871515812501. The reversal of 3871515812452 is 2542185151783.

It is a self number, because there is not a number n which added to its sum of digits gives 3871515812452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42769924 + ... + 42860347.

It is an arithmetic number, because the mean of its divisors is an integer number (287717713920).

Almost surely, 2^{3871515812452} is an apocalyptic number.

It is an amenable number.

3871515812452 is a deficient number, since it is larger than the sum of its proper divisors (3033709321628).

3871515812452 is a wasteful number, since it uses less digits than its factorization.

3871515812452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85630491 (or 85630489 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 52.

The spelling of 3871515812452 in words is "three trillion, eight hundred seventy-one billion, five hundred fifteen million, eight hundred twelve thousand, four hundred fifty-two".