65268255878 has 48 divisors (see below), whose sum is σ = 122142550320. Its totient is φ = 25999856064.

The previous prime is 65268255869. The next prime is 65268255883. The reversal of 65268255878 is 87855286256.

It is a self number, because there is not a number n which added to its sum of digits gives 65268255878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232001 + ... + 429372.

It is an arithmetic number, because the mean of its divisors is an integer number (2544636465).

Almost surely, 2^65268255878 is an apocalyptic number.

65268255878 is a deficient number, since it is larger than the sum of its proper divisors (56874294442).

65268255878 is a wasteful number, since it uses less digits than its factorization.

65268255878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661461 (or 661454 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 62.

The spelling of 65268255878 in words is "sixty-five billion, two hundred sixty-eight million, two hundred fifty-five thousand, eight hundred seventy-eight".