681467401347 has 8 divisors (see below), whose sum is σ = 911241713856. Its totient is φ = 453002344872.

The previous prime is 681467401339. The next prime is 681467401397. The reversal of 681467401347 is 743104764186.

It is a happy number.

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

It is not a de Polignac number, because 681467401347 - 2³ = 681467401339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 681467401347.

It is not an unprimeable number, because it can be changed into a prime (681467401337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327312793 + ... + 327314874.

It is an arithmetic number, because the mean of its divisors is an integer number (113905214232).

Almost surely, 2^681467401347 is an apocalyptic number.

681467401347 is a deficient number, since it is larger than the sum of its proper divisors (229774312509).

681467401347 is a wasteful number, since it uses less digits than its factorization.

681467401347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654628017.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 681467401347 in words is "six hundred eighty-one billion, four hundred sixty-seven million, four hundred one thousand, three hundred forty-seven".