722011894668 has 96 divisors (see below), whose sum is σ = 1874921368320. Its totient is φ = 240280358400.

The previous prime is 722011894633. The next prime is 722011894679. The reversal of 722011894668 is 866498110227.

It is a happy number.

722011894668 is a `hidden beast` number, since 72 + 20 + 11 + 89 + 466 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 317645980 + ... + 317648252.

It is an arithmetic number, because the mean of its divisors is an integer number (19530430920).

Almost surely, 2^722011894668 is an apocalyptic number.

It is an amenable number.

722011894668 is an abundant number, since it is smaller than the sum of its proper divisors (1152909473652).

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

722011894668 is a wasteful number, since it uses less digits than its factorization.

722011894668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764 (or 5756 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 722011894668 in words is "seven hundred twenty-two billion, eleven million, eight hundred ninety-four thousand, six hundred sixty-eight".