3977565139198 has 16 divisors (see below), whose sum is σ = 7177561153920. Its totient is φ = 1614951259416.

The previous prime is 3977565139189. The next prime is 3977565139237. The reversal of 3977565139198 is 8919315657793.

It is a self number, because there is not a number n which added to its sum of digits gives 3977565139198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476625936 + ... + 7476626467.

It is an arithmetic number, because the mean of its divisors is an integer number (448597572120).

Almost surely, 2^{3977565139198} is an apocalyptic number.

3977565139198 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3977565139198 is a deficient number, since it is larger than the sum of its proper divisors (3199996014722).

3977565139198 is a wasteful number, since it uses less digits than its factorization.

3977565139198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14953252431.

The product of its digits is 385786800, while the sum is 73.

The spelling of 3977565139198 in words is "three trillion, nine hundred seventy-seven billion, five hundred sixty-five million, one hundred thirty-nine thousand, one hundred ninety-eight".