5224668642 has 54 divisors (see below), whose sum is σ = 11773565739. Its totient is φ = 1738796220.

The previous prime is 5224668629. The next prime is 5224668671. The reversal of 5224668642 is 2468664225.

5224668642 is a `hidden beast` number, since 522 + 4 + 6 + 6 + 86 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2612334321 + 2612334321 = 51111^2 + 51111^2 .

It is a tau number, because it is divible by the number of its divisors (54).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=51111.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8279667 + ... + 8280297.

Almost surely, 2^5224668642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5224668642

5224668642 is an abundant number, since it is smaller than the sum of its proper divisors (6548897097).

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

5224668642 is an frugal number, since it uses more digits than its factorization.

5224668642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 636 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 5224668642 is about 72281.8693864513. The cubic root of 5224668642 is about 1735.2134978547.

The spelling of 5224668642 in words is "five billion, two hundred twenty-four million, six hundred sixty-eight thousand, six hundred forty-two".