865326480 has 80 divisors (see below), whose sum is σ = 2726533824. Its totient is φ = 226967040.

The previous prime is 865326461. The next prime is 865326491. The reversal of 865326480 is 84623568.

865326480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14914 + ... + 44193.

Almost surely, 2^865326480 is an apocalyptic number.

865326480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

865326480 is an abundant number, since it is smaller than the sum of its proper divisors (1861207344).

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

865326480 is a wasteful number, since it uses less digits than its factorization.

865326480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59184 (or 59178 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 865326480 is about 29416.4321425968. The cubic root of 865326480 is about 952.9278022635.

The spelling of 865326480 in words is "eight hundred sixty-five million, three hundred twenty-six thousand, four hundred eighty".