6427520656828 has 12 divisors (see below), whose sum is σ = 11522506543632. Its totient is φ = 3135375930080.

The previous prime is 6427520656807. The next prime is 6427520656861. The reversal of 6427520656828 is 8286560257246.

It is a congruent number.

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, 19596099400 + ... + 19596099727.

It is an arithmetic number, because the mean of its divisors is an integer number (960208878636).

Almost surely, 2^{6427520656828} is an apocalyptic number.

It is an amenable number.

6427520656828 is a deficient number, since it is larger than the sum of its proper divisors (5094985886804).

6427520656828 is a wasteful number, since it uses less digits than its factorization.

6427520656828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39192199172 (or 39192199170 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 61.

The spelling of 6427520656828 in words is "six trillion, four hundred twenty-seven billion, five hundred twenty million, six hundred fifty-six thousand, eight hundred twenty-eight".