6442418784 has 24 divisors (see below), whose sum is σ = 16911349560. Its totient is φ = 2147472896.

The previous prime is 6442418777. The next prime is 6442418797. The reversal of 6442418784 is 4878142446.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33554169 + ... + 33554360.

It is an arithmetic number, because the mean of its divisors is an integer number (704639565).

Almost surely, 2^6442418784 is an apocalyptic number.

It is an amenable number.

6442418784 is an abundant number, since it is smaller than the sum of its proper divisors (10468930776).

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

6442418784 is a wasteful number, since it uses less digits than its factorization.

6442418784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67108542 (or 67108534 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 48.

The square root of 6442418784 is about 80264.6795545837. The cubic root of 6442418784 is about 1860.7283908666.

The spelling of 6442418784 in words is "six billion, four hundred forty-two million, four hundred eighteen thousand, seven hundred eighty-four".