3982778616854 has 8 divisors (see below), whose sum is σ = 5974179831048. Its totient is φ = 1991385339840.

The previous prime is 3982778616827. The next prime is 3982778616871. The reversal of 3982778616854 is 4586168772893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3982778616854² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511067 + ... + 2868230.

It is an arithmetic number, because the mean of its divisors is an integer number (746772478881).

Almost surely, 2^{3982778616854} is an apocalyptic number.

3982778616854 is a deficient number, since it is larger than the sum of its proper divisors (1991401214194).

3982778616854 is a wasteful number, since it uses less digits than its factorization.

3982778616854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968590.

The product of its digits is 975421440, while the sum is 74.

The spelling of 3982778616854 in words is "three trillion, nine hundred eighty-two billion, seven hundred seventy-eight million, six hundred sixteen thousand, eight hundred fifty-four".