6542072444 has 12 divisors (see below), whose sum is σ = 11456419968. Its totient is φ = 3268809600.

The previous prime is 6542072443. The next prime is 6542072461. The reversal of 6542072444 is 4442702456.

It is a junction number, because it is equal to n+sod(n) for n = 6542072398 and 6542072407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6542072443) 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, 550037 + ... + 561804.

It is an arithmetic number, because the mean of its divisors is an integer number (954701664).

Almost surely, 2^6542072444 is an apocalyptic number.

It is an amenable number.

6542072444 is a deficient number, since it is larger than the sum of its proper divisors (4914347524).

6542072444 is a wasteful number, since it uses less digits than its factorization.

6542072444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113316 (or 1113314 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 38.

The square root of 6542072444 is about 80883.0788484217. The cubic root of 6542072444 is about 1870.2734826458.

The spelling of 6542072444 in words is "six billion, five hundred forty-two million, seventy-two thousand, four hundred forty-four".