8139744704 has 224 divisors, whose sum is σ = 22162129920. Its totient is φ = 2870525952.

The previous prime is 8139744677. The next prime is 8139744731. The reversal of 8139744704 is 4074479318.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8139744677) and next prime (8139744731).

It is a tau number, because it is divible by the number of its divisors (224).

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1878989 + ... + 1883315.

It is an arithmetic number, because the mean of its divisors is an integer number (98938080).

Almost surely, 2^8139744704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8139744704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11081064960).

8139744704 is an abundant number, since it is smaller than the sum of its proper divisors (14022385216).

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

8139744704 is a wasteful number, since it uses less digits than its factorization.

8139744704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 8139744704 is about 90220.5337160006. The cubic root of 8139744704 is about 2011.5782348945.

The spelling of 8139744704 in words is "eight billion, one hundred thirty-nine million, seven hundred forty-four thousand, seven hundred four".