65484448878 has 32 divisors (see below), whose sum is σ = 133038126720. Its totient is φ = 21483839520.

The previous prime is 65484448807. The next prime is 65484448891. The reversal of 65484448878 is 87884448456.

It is a congruent number.

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, 401188 + ... + 540296.

It is an arithmetic number, because the mean of its divisors is an integer number (4157441460).

Almost surely, 2^65484448878 is an apocalyptic number.

65484448878 is an abundant number, since it is smaller than the sum of its proper divisors (67553677842).

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

65484448878 is a wasteful number, since it uses less digits than its factorization.

65484448878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140352.

The product of its digits is 220200960, while the sum is 66.

The spelling of 65484448878 in words is "sixty-five billion, four hundred eighty-four million, four hundred forty-eight thousand, eight hundred seventy-eight".