561134262667 has 16 divisors (see below), whose sum is σ = 617717440512. Its totient is φ = 505489360320.

The previous prime is 561134262659. The next prime is 561134262673. The reversal of 561134262667 is 766262431165.

It is a cyclic number.

It is not a de Polignac number, because 561134262667 - 2³ = 561134262659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561134262667.

It is not an unprimeable number, because it can be changed into a prime (561134262167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905703 + ... + 1393759.

It is an arithmetic number, because the mean of its divisors is an integer number (38607340032).

Almost surely, 2^561134262667 is an apocalyptic number.

561134262667 is a deficient number, since it is larger than the sum of its proper divisors (56583177845).

561134262667 is a wasteful number, since it uses less digits than its factorization.

561134262667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489018.

The product of its digits is 2177280, while the sum is 49.

The spelling of 561134262667 in words is "five hundred sixty-one billion, one hundred thirty-four million, two hundred sixty-two thousand, six hundred sixty-seven".