646092704652 has 12 divisors (see below), whose sum is σ = 1507549644216. Its totient is φ = 215364234880.

The previous prime is 646092704651. The next prime is 646092704659. The reversal of 646092704652 is 256407290646.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×646092704652² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 646092704595 and 646092704604.

It is not an unprimeable number, because it can be changed into a prime (646092704651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26920529349 + ... + 26920529372.

It is an arithmetic number, because the mean of its divisors is an integer number (125629137018).

Almost surely, 2^646092704652 is an apocalyptic number.

It is an amenable number.

646092704652 is an abundant number, since it is smaller than the sum of its proper divisors (861456939564).

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

646092704652 is a wasteful number, since it uses less digits than its factorization.

646092704652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53841058728 (or 53841058726 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 646092704652 in words is "six hundred forty-six billion, ninety-two million, seven hundred four thousand, six hundred fifty-two".