6438504644106 has 64 divisors (see below), whose sum is σ = 13245078528000. Its totient is φ = 2085346904256.

The previous prime is 6438504644087. The next prime is 6438504644137. The reversal of 6438504644106 is 6014464058346.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496830055 + ... + 496843013.

It is an arithmetic number, because the mean of its divisors is an integer number (206954352000).

Almost surely, 2^{6438504644106} is an apocalyptic number.

6438504644106 is an abundant number, since it is smaller than the sum of its proper divisors (6806573883894).

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

6438504644106 is a wasteful number, since it uses less digits than its factorization.

6438504644106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22883.

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 6438504644106 in words is "six trillion, four hundred thirty-eight billion, five hundred four million, six hundred forty-four thousand, one hundred six".