861463448228 has 24 divisors (see below), whose sum is σ = 1603273023072. Its totient is φ = 403608677504.

The previous prime is 861463448227. The next prime is 861463448233. The reversal of 861463448228 is 822844364168.

It is not an unprimeable number, because it can be changed into a prime (861463448227) 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, 27888926 + ... + 27919797.

It is an arithmetic number, because the mean of its divisors is an integer number (66803042628).

Almost surely, 2^861463448228 is an apocalyptic number.

It is an amenable number.

861463448228 is a deficient number, since it is larger than the sum of its proper divisors (741809574844).

861463448228 is a wasteful number, since it uses less digits than its factorization.

861463448228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55808971 (or 55808969 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 56.

The spelling of 861463448228 in words is "eight hundred sixty-one billion, four hundred sixty-three million, four hundred forty-eight thousand, two hundred twenty-eight".