561422278367 has 8 divisors (see below), whose sum is σ = 581984603856. Its totient is φ = 541143571392.

The previous prime is 561422278349. The next prime is 561422278379. The reversal of 561422278367 is 763872224165.

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

It is a cyclic number.

It is not a de Polignac number, because 561422278367 - 2⁸ = 561422278111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561422278337) 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, 70900598 + ... + 70908515.

It is an arithmetic number, because the mean of its divisors is an integer number (72748075482).

Almost surely, 2^561422278367 is an apocalyptic number.

561422278367 is a deficient number, since it is larger than the sum of its proper divisors (20562325489).

561422278367 is a wasteful number, since it uses less digits than its factorization.

561422278367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141809257.

The product of its digits is 6773760, while the sum is 53.

The spelling of 561422278367 in words is "five hundred sixty-one billion, four hundred twenty-two million, two hundred seventy-eight thousand, three hundred sixty-seven".