5344878818638 has 16 divisors (see below), whose sum is σ = 8021101722480. Its totient is φ = 2671178385600.

The previous prime is 5344878818623. The next prime is 5344878818711. The reversal of 5344878818638 is 8368188784435.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126818173 + ... + 126860311.

It is an arithmetic number, because the mean of its divisors is an integer number (501318857655).

Almost surely, 2^{5344878818638} is an apocalyptic number.

5344878818638 is a deficient number, since it is larger than the sum of its proper divisors (2676222903842).

5344878818638 is a wasteful number, since it uses less digits than its factorization.

5344878818638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70563.

The product of its digits is 990904320, while the sum is 73.

The spelling of 5344878818638 in words is "five trillion, three hundred forty-four billion, eight hundred seventy-eight million, eight hundred eighteen thousand, six hundred thirty-eight".