47085821264656 has 10 divisors (see below), whose sum is σ = 91228778700302. Its totient is φ = 23542910632320.

The previous prime is 47085821264639. The next prime is 47085821264659. The reversal of 47085821264656 is 65646212858074.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33283853254656 + 13801968010000 = 5769216^2 + 3715100^2 .

It is not an unprimeable number, because it can be changed into a prime (47085821264659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471431914505 + ... + 1471431914536.

Almost surely, 2^{47085821264656} is an apocalyptic number.

It is an amenable number.

47085821264656 is a deficient number, since it is larger than the sum of its proper divisors (44142957435646).

47085821264656 is a wasteful number, since it uses less digits than its factorization.

47085821264656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942863829049 (or 2942863829043 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 64.

The spelling of 47085821264656 in words is "forty-seven trillion, eighty-five billion, eight hundred twenty-one million, two hundred sixty-four thousand, six hundred fifty-six".