3919454766856 has 16 divisors (see below), whose sum is σ = 7349279599440. Its totient is φ = 1959646873680.

The previous prime is 3919454766833. The next prime is 3919454766881. The reversal of 3919454766856 is 6586674549193.

It is a super-2 number, since 2×3919454766856² (a number of 26 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 9856566 + ... + 10246501.

It is an arithmetic number, because the mean of its divisors is an integer number (459329974965).

Almost surely, 2^{3919454766856} is an apocalyptic number.

It is an amenable number.

3919454766856 is a deficient number, since it is larger than the sum of its proper divisors (3429824832584).

3919454766856 is a wasteful number, since it uses less digits than its factorization.

3919454766856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20127444 (or 20127440 counting only the distinct ones).

The product of its digits is 1175731200, while the sum is 73.

The spelling of 3919454766856 in words is "three trillion, nine hundred nineteen billion, four hundred fifty-four million, seven hundred sixty-six thousand, eight hundred fifty-six".