6623865842 has 32 divisors (see below), whose sum is σ = 11467008000. Its totient is φ = 2838013200.

The previous prime is 6623865827. The next prime is 6623865863. The reversal of 6623865842 is 2485683266.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43367 + ... + 122997.

It is an arithmetic number, because the mean of its divisors is an integer number (358344000).

Almost surely, 2^6623865842 is an apocalyptic number.

6623865842 is a deficient number, since it is larger than the sum of its proper divisors (4843142158).

6623865842 is a wasteful number, since it uses less digits than its factorization.

6623865842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79862.

The product of its digits is 3317760, while the sum is 50.

The square root of 6623865842 is about 81387.1356050820. The cubic root of 6623865842 is about 1878.0356956094.

The spelling of 6623865842 in words is "six billion, six hundred twenty-three million, eight hundred sixty-five thousand, eight hundred forty-two".