6624443854 has 16 divisors (see below), whose sum is σ = 11849937408. Its totient is φ = 2715610392.

The previous prime is 6624443747. The next prime is 6624443857. The reversal of 6624443854 is 4583444266.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6624443857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10286082 + ... + 10286725.

It is an arithmetic number, because the mean of its divisors is an integer number (740621088).

Almost surely, 2^6624443854 is an apocalyptic number.

6624443854 is a deficient number, since it is larger than the sum of its proper divisors (5225493554).

6624443854 is a wasteful number, since it uses less digits than its factorization.

6624443854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20572839.

The product of its digits is 2211840, while the sum is 46.

The square root of 6624443854 is about 81390.6865310768. The cubic root of 6624443854 is about 1878.0903210915.

The spelling of 6624443854 in words is "six billion, six hundred twenty-four million, four hundred forty-three thousand, eight hundred fifty-four".