646202607628 has 12 divisors (see below), whose sum is σ = 1130862508272. Its totient is φ = 323099033840.

The previous prime is 646202607607. The next prime is 646202607671. The reversal of 646202607628 is 826706202646.

It is an unprimeable number.

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, 183426 + ... + 1151542.

It is an arithmetic number, because the mean of its divisors is an integer number (94238542356).

Almost surely, 2^646202607628 is an apocalyptic number.

It is an amenable number.

646202607628 is a deficient number, since it is larger than the sum of its proper divisors (484659900644).

646202607628 is a wasteful number, since it uses less digits than its factorization.

646202607628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134992 (or 1134990 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 646202607628 in words is "six hundred forty-six billion, two hundred two million, six hundred seven thousand, six hundred twenty-eight".