861578482 has 16 divisors (see below), whose sum is σ = 1351717632. Its totient is φ = 411093760.

The previous prime is 861578453. The next prime is 861578483. The reversal of 861578482 is 284875168.

It is not an unprimeable number, because it can be changed into a prime (861578483) 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, 1903 + ... + 41554.

It is an arithmetic number, because the mean of its divisors is an integer number (84482352).

Almost surely, 2^861578482 is an apocalyptic number.

861578482 is a deficient number, since it is larger than the sum of its proper divisors (490139150).

861578482 is a wasteful number, since it uses less digits than its factorization.

861578482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43913.

The product of its digits is 860160, while the sum is 49.

The square root of 861578482 is about 29352.6571539954. The cubic root of 861578482 is about 951.5500022645.

The spelling of 861578482 in words is "eight hundred sixty-one million, five hundred seventy-eight thousand, four hundred eighty-two".