7869691140 has 144 divisors (see below), whose sum is σ = 22946571648. Its totient is φ = 2015111168.

The previous prime is 7869691121. The next prime is 7869691163. The reversal of 7869691140 is 411969687.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13270684 + ... + 13271276.

It is an arithmetic number, because the mean of its divisors is an integer number (159351192).

Almost surely, 2^7869691140 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 7869691140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11473285824).

7869691140 is an abundant number, since it is smaller than the sum of its proper divisors (15076880508).

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

7869691140 is a wasteful number, since it uses less digits than its factorization.

7869691140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 7869691140 is about 88711.2796661169. The cubic root of 7869691140 is about 1989.0814292109.

The spelling of 7869691140 in words is "seven billion, eight hundred sixty-nine million, six hundred ninety-one thousand, one hundred forty".