865782240480 has 72 divisors (see below), whose sum is σ = 2954481900552. Its totient is φ = 230875263744.

The previous prime is 865782240419. The next prime is 865782240503. The reversal of 865782240480 is 84042287568.

865782240480 is a `hidden beast` number, since 8 + 6 + 578 + 2 + 24 + 0 + 48 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300617394 + ... + 300620273.

It is an arithmetic number, because the mean of its divisors is an integer number (41034470841).

Almost surely, 2^865782240480 is an apocalyptic number.

865782240480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

865782240480 is an abundant number, since it is smaller than the sum of its proper divisors (2088699660072).

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

865782240480 is a wasteful number, since it uses less digits than its factorization.

865782240480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601237688 (or 601237677 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 865782240480 in words is "eight hundred sixty-five billion, seven hundred eighty-two million, two hundred forty thousand, four hundred eighty".