3861773687939 has 8 divisors (see below), whose sum is σ = 3930928982640. Its totient is φ = 3792741776800.

The previous prime is 3861773687909. The next prime is 3861773687971. The reversal of 3861773687939 is 9397863771683.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3861773687939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3861773687939.

It is not an unprimeable number, because it can be changed into a prime (3861773687909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30782732 + ... + 30907929.

It is an arithmetic number, because the mean of its divisors is an integer number (491366122830).

Almost surely, 2^{3861773687939} is an apocalyptic number.

3861773687939 is a deficient number, since it is larger than the sum of its proper divisors (69155294701).

3861773687939 is a wasteful number, since it uses less digits than its factorization.

3861773687939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61691781.

The product of its digits is 1728324864, while the sum is 77.

The spelling of 3861773687939 in words is "three trillion, eight hundred sixty-one billion, seven hundred seventy-three million, six hundred eighty-seven thousand, nine hundred thirty-nine".