5268720642 has 16 divisors (see below), whose sum is σ = 10538311680. Its totient is φ = 1756095152.

The previous prime is 5268720601. The next prime is 5268720647. The reversal of 5268720642 is 2460278625.

It is a junction number, because it is equal to n+sod(n) for n = 5268720594 and 5268720603.

It is not an unprimeable number, because it can be changed into a prime (5268720647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63568 + ... + 120740.

It is an arithmetic number, because the mean of its divisors is an integer number (658644480).

Almost surely, 2^5268720642 is an apocalyptic number.

5268720642 is an abundant number, since it is smaller than the sum of its proper divisors (5269591038).

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

5268720642 is a wasteful number, since it uses less digits than its factorization.

5268720642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72537.

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 5268720642 is about 72585.9534758620. The cubic root of 5268720642 is about 1740.0766956549.

The spelling of 5268720642 in words is "five billion, two hundred sixty-eight million, seven hundred twenty thousand, six hundred forty-two".