861563468 has 24 divisors (see below), whose sum is σ = 1611086400. Its totient is φ = 401718528.

The previous prime is 861563467. The next prime is 861563473. The reversal of 861563468 is 864365168.

861563468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (861563467) 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, 50708 + ... + 65531.

It is an arithmetic number, because the mean of its divisors is an integer number (67128600).

Almost surely, 2^861563468 is an apocalyptic number.

It is an amenable number.

861563468 is a deficient number, since it is larger than the sum of its proper divisors (749522932).

861563468 is a wasteful number, since it uses less digits than its factorization.

861563468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116369 (or 116367 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 861563468 is about 29352.4014009076. The cubic root of 861563468 is about 951.5444749465.

The spelling of 861563468 in words is "eight hundred sixty-one million, five hundred sixty-three thousand, four hundred sixty-eight".