3806778554444 has 12 divisors (see below), whose sum is σ = 6662012422800. Its totient is φ = 1903346433648.

The previous prime is 3806778554431. The next prime is 3806778554461. The reversal of 3806778554444 is 4444558776083.

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, 10510559 + ... + 10866710.

It is an arithmetic number, because the mean of its divisors is an integer number (555167701900).

Almost surely, 2^{3806778554444} is an apocalyptic number.

It is an amenable number.

3806778554444 is a deficient number, since it is larger than the sum of its proper divisors (2855233868356).

3806778554444 is a wasteful number, since it uses less digits than its factorization.

3806778554444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21421792 (or 21421790 counting only the distinct ones).

The product of its (nonzero) digits is 361267200, while the sum is 65.

The spelling of 3806778554444 in words is "three trillion, eight hundred six billion, seven hundred seventy-eight million, five hundred fifty-four thousand, four hundred forty-four".