7120827798 has 64 divisors (see below), whose sum is σ = 16557488640. Its totient is φ = 1999613952.

The previous prime is 7120827781. The next prime is 7120827799. The reversal of 7120827798 is 8977280217.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7120827798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7120827799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681558 + ... + 691926.

It is an arithmetic number, because the mean of its divisors is an integer number (258710760).

Almost surely, 2^7120827798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7120827798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8278744320).

7120827798 is an abundant number, since it is smaller than the sum of its proper divisors (9436660842).

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

7120827798 is a wasteful number, since it uses less digits than its factorization.

7120827798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661.

The product of its (nonzero) digits is 790272, while the sum is 51.

The square root of 7120827798 is about 84384.9974699295. The cubic root of 7120827798 is about 1923.8748964159.

The spelling of 7120827798 in words is "seven billion, one hundred twenty million, eight hundred twenty-seven thousand, seven hundred ninety-eight".