681202914 has 64 divisors (see below), whose sum is σ = 1630734336. Its totient is φ = 185480064.

The previous prime is 681202909. The next prime is 681202919. The reversal of 681202914 is 419202186.

It is an interprime number because it is at equal distance from previous prime (681202909) and next prime (681202919).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (681202919) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 295414 + ... + 297710.

It is an arithmetic number, because the mean of its divisors is an integer number (25480224).

Almost surely, 2^681202914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 681202914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815367168).

681202914 is an abundant number, since it is smaller than the sum of its proper divisors (949531422).

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

681202914 is a wasteful number, since it uses less digits than its factorization.

681202914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 681202914 is about 26099.8642525205. The cubic root of 681202914 is about 879.8841591663.

The spelling of 681202914 in words is "six hundred eighty-one million, two hundred two thousand, nine hundred fourteen".