3712821861604 has 12 divisors (see below), whose sum is σ = 6511351405104. Its totient is φ = 1852435745864.

The previous prime is 3712821861569. The next prime is 3712821861659. The reversal of 3712821861604 is 4061681282173.

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, 993794134 + ... + 993797869.

It is an arithmetic number, because the mean of its divisors is an integer number (542612617092).

Almost surely, 2^{3712821861604} is an apocalyptic number.

It is an amenable number.

3712821861604 is a deficient number, since it is larger than the sum of its proper divisors (2798529543500).

3712821861604 is a wasteful number, since it uses less digits than its factorization.

3712821861604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987592474 (or 1987592472 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 3712821861604 in words is "three trillion, seven hundred twelve billion, eight hundred twenty-one million, eight hundred sixty-one thousand, six hundred four".