652513266678 has 256 divisors, whose sum is σ = 1775322372096. Its totient is φ = 155002429440.

The previous prime is 652513266673. The next prime is 652513266697. The reversal of 652513266678 is 876662315256.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652513266673) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20933901 + ... + 20965047.

It is an arithmetic number, because the mean of its divisors is an integer number (6934853016).

Almost surely, 2^652513266678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652513266678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887661186048).

652513266678 is an abundant number, since it is smaller than the sum of its proper divisors (1122809105418).

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

652513266678 is a wasteful number, since it uses less digits than its factorization.

652513266678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31287.

The product of its digits is 21772800, while the sum is 57.

The spelling of 652513266678 in words is "six hundred fifty-two billion, five hundred thirteen million, two hundred sixty-six thousand, six hundred seventy-eight".