681052002 has 8 divisors (see below), whose sum is σ = 1362104016. Its totient is φ = 227017332.

The previous prime is 681051971. The next prime is 681052003. The reversal of 681052002 is 200250186.

It is a sphenic number, since it is the product of 3 distinct primes.

681052002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (681052003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56754328 + ... + 56754339.

It is an arithmetic number, because the mean of its divisors is an integer number (170263002).

Almost surely, 2^681052002 is an apocalyptic number.

681052002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

681052002 is a wasteful number, since it uses less digits than its factorization.

681052002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113508672.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 681052002 is about 26096.9730428646. The cubic root of 681052002 is about 879.8191785845.

It can be divided in two parts, 68105 and 2002, that added together give a palindrome (70107).

The spelling of 681052002 in words is "six hundred eighty-one million, fifty-two thousand, two".