561250272268 has 24 divisors (see below), whose sum is σ = 1123359455232. Its totient is φ = 240351778704.

The previous prime is 561250272197. The next prime is 561250272269. The reversal of 561250272268 is 862272052165.

It is not an unprimeable number, because it can be changed into a prime (561250272269) 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, 7631596 + ... + 7704787.

It is an arithmetic number, because the mean of its divisors is an integer number (46806643968).

Almost surely, 2^561250272268 is an apocalyptic number.

It is an amenable number.

561250272268 is an abundant number, since it is smaller than the sum of its proper divisors (562109182964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561250272268 is a wasteful number, since it uses less digits than its factorization.

561250272268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15337701 (or 15337699 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 561250272268 in words is "five hundred sixty-one billion, two hundred fifty million, two hundred seventy-two thousand, two hundred sixty-eight".