861614080 has 52 divisors (see below), whose sum is σ = 2067670512. Its totient is φ = 344637440.

The previous prime is 861614059. The next prime is 861614107. The reversal of 861614080 is 80416168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556 + ... + 41515.

Almost surely, 2^861614080 is an apocalyptic number.

861614080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 861614080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033835256).

861614080 is an abundant number, since it is smaller than the sum of its proper divisors (1206056432).

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

861614080 is an equidigital number, since it uses as much as digits as its factorization.

861614080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42100 (or 42078 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 861614080 is about 29353.2635323570. The cubic root of 861614080 is about 951.5631072074.

The spelling of 861614080 in words is "eight hundred sixty-one million, six hundred fourteen thousand, eighty".