652278438792 has 60 divisors (see below), whose sum is σ = 1827041176455. Its totient is φ = 217419293232.

The previous prime is 652278438743. The next prime is 652278438797. The reversal of 652278438792 is 297834872256.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

652278438792 is a `hidden beast` number, since 6 + 522 + 7 + 8 + 4 + 38 + 79 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 326139219396 + 326139219396 = 571086^2 + 571086^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=571086.

It is not an unprimeable number, because it can be changed into a prime (652278438797) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 20543233 + ... + 20574959.

Almost surely, 2^652278438792 is an apocalyptic number.

It is an amenable number.

652278438792 is an abundant number, since it is smaller than the sum of its proper divisors (1174762737663).

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

652278438792 is an frugal number, since it uses more digits than its factorization.

652278438792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63472 (or 31732 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 652278438792 in words is "six hundred fifty-two billion, two hundred seventy-eight million, four hundred thirty-eight thousand, seven hundred ninety-two".