681196028722 has 32 divisors (see below), whose sum is σ = 1138829103360. Its totient is φ = 302932654080.

The previous prime is 681196028713. The next prime is 681196028741. The reversal of 681196028722 is 227820691186.

It is a self number, because there is not a number n which added to its sum of digits gives 681196028722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2657928 + ... + 2902924.

It is an arithmetic number, because the mean of its divisors is an integer number (35588409480).

Almost surely, 2^681196028722 is an apocalyptic number.

681196028722 is a deficient number, since it is larger than the sum of its proper divisors (457633074638).

681196028722 is a wasteful number, since it uses less digits than its factorization.

681196028722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247746.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 681196028722 in words is "six hundred eighty-one billion, one hundred ninety-six million, twenty-eight thousand, seven hundred twenty-two".