681462751248 has 120 divisors (see below), whose sum is σ = 2027016879680. Its totient is φ = 213109367040.

The previous prime is 681462751243. The next prime is 681462751283. The reversal of 681462751248 is 842157264186.

681462751248 is a `hidden beast` number, since 6 + 8 + 1 + 4 + 627 + 5 + 1 + 2 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 681462751194 and 681462751203.

It is not an unprimeable number, because it can be changed into a prime (681462751243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927283 + ... + 1490898.

Almost surely, 2^681462751248 is an apocalyptic number.

It is an amenable number.

681462751248 is an abundant number, since it is smaller than the sum of its proper divisors (1345554128432).

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

681462751248 is a wasteful number, since it uses less digits than its factorization.

681462751248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418317 (or 2418308 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 681462751248 in words is "six hundred eighty-one billion, four hundred sixty-two million, seven hundred fifty-one thousand, two hundred forty-eight".