3847229773566 has 64 divisors (see below), whose sum is σ = 7954135096320. Its totient is φ = 1239708431360.

The previous prime is 3847229773561. The next prime is 3847229773571. The reversal of 3847229773566 is 6653779227483.

It is an interprime number because it is at equal distance from previous prime (3847229773561) and next prime (3847229773571).

It is a super-2 number, since 2×3847229773566² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3847229773566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847229773561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109033915 + ... + 109069193.

It is an arithmetic number, because the mean of its divisors is an integer number (124283360880).

Almost surely, 2^{3847229773566} is an apocalyptic number.

3847229773566 is an abundant number, since it is smaller than the sum of its proper divisors (4106905322754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3847229773566 is a wasteful number, since it uses less digits than its factorization.

3847229773566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39361.

The product of its digits is 640120320, while the sum is 69.

The spelling of 3847229773566 in words is "three trillion, eight hundred forty-seven billion, two hundred twenty-nine million, seven hundred seventy-three thousand, five hundred sixty-six".