84747245656 has 32 divisors (see below), whose sum is σ = 160385063760. Its totient is φ = 41979629952.

The previous prime is 84747245647. The next prime is 84747245677. The reversal of 84747245656 is 65654274748.

It is a self number, because there is not a number n which added to its sum of digits gives 84747245656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283486 + ... + 499858.

Almost surely, 2^84747245656 is an apocalyptic number.

It is an amenable number.

84747245656 is a deficient number, since it is larger than the sum of its proper divisors (75637818104).

84747245656 is a wasteful number, since it uses less digits than its factorization.

84747245656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216835 (or 216831 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 58.

The spelling of 84747245656 in words is "eighty-four billion, seven hundred forty-seven million, two hundred forty-five thousand, six hundred fifty-six".