3804312782646 has 48 divisors (see below), whose sum is σ = 8270256440160. Its totient is φ = 1263862440960.

The previous prime is 3804312782617. The next prime is 3804312782651. The reversal of 3804312782646 is 6462872134083.

3804312782646 is a `hidden beast` number, since 3 + 80 + 4 + 31 + 278 + 264 + 6 = 666.

It is a super-2 number, since 2×3804312782646² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3804312782592 and 3804312782601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47615860 + ... + 47695688.

It is an arithmetic number, because the mean of its divisors is an integer number (172297009170).

Almost surely, 2^{3804312782646} is an apocalyptic number.

3804312782646 is an abundant number, since it is smaller than the sum of its proper divisors (4465943657514).

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

3804312782646 is a wasteful number, since it uses less digits than its factorization.

3804312782646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88661 (or 88658 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 3804312782646 in words is "three trillion, eight hundred four billion, three hundred twelve million, seven hundred eighty-two thousand, six hundred forty-six".