3946578121862 has 8 divisors (see below), whose sum is σ = 5919982816896. Its totient is φ = 1973250516232.

The previous prime is 3946578121823. The next prime is 3946578121877. The reversal of 3946578121862 is 2681218756493.

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

It is a junction number, because it is equal to n+sod(n) for n = 3946578121795 and 3946578121804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19144193 + ... + 19349244.

It is an arithmetic number, because the mean of its divisors is an integer number (739997852112).

Almost surely, 2^{3946578121862} is an apocalyptic number.

3946578121862 is a deficient number, since it is larger than the sum of its proper divisors (1973404695034).

3946578121862 is a wasteful number, since it uses less digits than its factorization.

3946578121862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38544702.

The product of its digits is 34836480, while the sum is 62.

The spelling of 3946578121862 in words is "three trillion, nine hundred forty-six billion, five hundred seventy-eight million, one hundred twenty-one thousand, eight hundred sixty-two".