6939158091744 has 192 divisors, whose sum is σ = 19230030457344. Its totient is φ = 2186665721856.

The previous prime is 6939158091739. The next prime is 6939158091763. The reversal of 6939158091744 is 4471908519396.

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, 88035519 + ... + 88114305.

It is an arithmetic number, because the mean of its divisors is an integer number (100156408632).

Almost surely, 2^{6939158091744} 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 6939158091744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9615015228672).

6939158091744 is an abundant number, since it is smaller than the sum of its proper divisors (12290872365600).

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

6939158091744 is a wasteful number, since it uses less digits than its factorization.

6939158091744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79289 (or 79281 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 6939158091744 in words is "six trillion, nine hundred thirty-nine billion, one hundred fifty-eight million, ninety-one thousand, seven hundred forty-four".