7791190871040 has 528 divisors, whose sum is σ = 27513645120000. Its totient is φ = 2037988491264.

The previous prime is 7791190871021. The next prime is 7791190871047. The reversal of 7791190871040 is 401780911977.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7791190871047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1356638409 + ... + 1356644151.

Almost surely, 2^{7791190871040} 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 7791190871040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13756822560000).

7791190871040 is an abundant number, since it is smaller than the sum of its proper divisors (19722454248960).

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

7791190871040 is a wasteful number, since it uses less digits than its factorization.

7791190871040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332 (or 6311 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 54.

The spelling of 7791190871040 in words is "seven trillion, seven hundred ninety-one billion, one hundred ninety million, eight hundred seventy-one thousand, forty".