3986616804157 has 16 divisors (see below), whose sum is σ = 4384787968512. Its totient is φ = 3601524044160.

The previous prime is 3986616804109. The next prime is 3986616804169. The reversal of 3986616804157 is 7514086166893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3986616804157 is a prime.

It is a super-2 number, since 2×3986616804157² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986616804257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18885528 + ... + 19095454.

It is an arithmetic number, because the mean of its divisors is an integer number (274049248032).

Almost surely, 2^{3986616804157} is an apocalyptic number.

It is an amenable number.

3986616804157 is a deficient number, since it is larger than the sum of its proper divisors (398171164355).

3986616804157 is a wasteful number, since it uses less digits than its factorization.

3986616804157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241068.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 3986616804157 in words is "three trillion, nine hundred eighty-six billion, six hundred sixteen million, eight hundred four thousand, one hundred fifty-seven".