681364471227 has 8 divisors (see below), whose sum is σ = 991075594560. Its totient is φ = 412948164360.

The previous prime is 681364471219. The next prime is 681364471231. The reversal of 681364471227 is 722174463186.

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

It is not a de Polignac number, because 681364471227 - 2³ = 681364471219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 681364471227.

It is not an unprimeable number, because it can be changed into a prime (681364471327) 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, 10323704077 + ... + 10323704142.

It is an arithmetic number, because the mean of its divisors is an integer number (123884449320).

Almost surely, 2^681364471227 is an apocalyptic number.

681364471227 is a deficient number, since it is larger than the sum of its proper divisors (309711123333).

681364471227 is a wasteful number, since it uses less digits than its factorization.

681364471227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20647408233.

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

The spelling of 681364471227 in words is "six hundred eighty-one billion, three hundred sixty-four million, four hundred seventy-one thousand, two hundred twenty-seven".