681319962 has 24 divisors (see below), whose sum is σ = 1480103040. Its totient is φ = 226505160.

The previous prime is 681319927. The next prime is 681319981. The reversal of 681319962 is 269913186.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43114 + ... + 56757.

It is an arithmetic number, because the mean of its divisors is an integer number (61670960).

Almost surely, 2^681319962 is an apocalyptic number.

681319962 is an abundant number, since it is smaller than the sum of its proper divisors (798783078).

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

681319962 is a wasteful number, since it uses less digits than its factorization.

681319962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100258 (or 100255 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 681319962 is about 26102.1064667203. The cubic root of 681319962 is about 879.9345517785.

The spelling of 681319962 in words is "six hundred eighty-one million, three hundred nineteen thousand, nine hundred sixty-two".