78625533248 has 28 divisors (see below), whose sum is σ = 158580297012. Its totient is φ = 38668293120.

The previous prime is 78625533247. The next prime is 78625533251. The reversal of 78625533248 is 84233552687.

It can be written as a sum of positive squares in 2 ways, for example, as 1003115584 + 77622417664 = 31672^2 + 278608^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78625533248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625533241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10065965 + ... + 10073772.

Almost surely, 2^78625533248 is an apocalyptic number.

It is an amenable number.

78625533248 is an abundant number, since it is smaller than the sum of its proper divisors (79954763764).

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

78625533248 is a wasteful number, since it uses less digits than its factorization.

78625533248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20139810 (or 20139800 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 53.

The spelling of 78625533248 in words is "seventy-eight billion, six hundred twenty-five million, five hundred thirty-three thousand, two hundred forty-eight".