681480445002336 has 192 divisors, whose sum is σ = 2305505984463360. Its totient is φ = 191802598479360.

The previous prime is 681480445002311. The next prime is 681480445002359. The reversal of 681480445002336 is 633200544084186.

681480445002336 is a `hidden beast` number, since 6 + 8 + 1 + 4 + 80 + 4 + 4 + 500 + 23 + 36 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 840480195 + ... + 841290626.

It is an arithmetic number, because the mean of its divisors is an integer number (12007843669080).

Almost surely, 2^{681480445002336} is an apocalyptic number.

It is an amenable number.

681480445002336 is an abundant number, since it is smaller than the sum of its proper divisors (1624025539461024).

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

681480445002336 is a wasteful number, since it uses less digits than its factorization.

681480445002336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681770914 (or 1681770900 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 681480445002336 in words is "six hundred eighty-one trillion, four hundred eighty billion, four hundred forty-five million, two thousand, three hundred thirty-six".