561971468 has 12 divisors (see below), whose sum is σ = 986594280. Its totient is φ = 280087392.

The previous prime is 561971437. The next prime is 561971479. The reversal of 561971468 is 864179165.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223178 + ... + 225681.

It is an arithmetic number, because the mean of its divisors is an integer number (82216190).

Almost surely, 2^561971468 is an apocalyptic number.

It is an amenable number.

561971468 is a deficient number, since it is larger than the sum of its proper divisors (424622812).

561971468 is a wasteful number, since it uses less digits than its factorization.

561971468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449176 (or 449174 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 561971468 is about 23705.9373997317. The cubic root of 561971468 is about 825.2231868764.

The spelling of 561971468 in words is "five hundred sixty-one million, nine hundred seventy-one thousand, four hundred sixty-eight".