561275023653423 has 6 divisors (see below), whose sum is σ = 810730589721624. Its totient is φ = 374183349102276.

The previous prime is 561275023653401. The next prime is 561275023653433. The reversal of 561275023653423 is 324356320572165.

561275023653423 is a `hidden beast` number, since 5 + 6 + 1 + 2 + 7 + 50 + 2 + 36 + 534 + 23 = 666.

It is not a de Polignac number, because 561275023653423 - 2⁹ = 561275023652911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561275023653423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561275023653433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31181945758515 + ... + 31181945758532.

It is an arithmetic number, because the mean of its divisors is an integer number (135121764953604).

Almost surely, 2^{561275023653423} is an apocalyptic number.

561275023653423 is a deficient number, since it is larger than the sum of its proper divisors (249455566068201).

561275023653423 is a wasteful number, since it uses less digits than its factorization.

561275023653423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62363891517053 (or 62363891517050 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 54.

The spelling of 561275023653423 in words is "five hundred sixty-one trillion, two hundred seventy-five billion, twenty-three million, six hundred fifty-three thousand, four hundred twenty-three".