7881590130 has 32 divisors (see below), whose sum is σ = 19568088000. Its totient is φ = 2029282752.

The previous prime is 7881590063. The next prime is 7881590131. The reversal of 7881590130 is 310951887.

It is not an unprimeable number, because it can be changed into a prime (7881590131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4528780 + ... + 4530519.

It is an arithmetic number, because the mean of its divisors is an integer number (611502750).

Almost surely, 2^7881590130 is an apocalyptic number.

7881590130 is an abundant number, since it is smaller than the sum of its proper divisors (11686497870).

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

7881590130 is a wasteful number, since it uses less digits than its factorization.

7881590130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059338.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 7881590130 is about 88778.3201575700. The cubic root of 7881590130 is about 1990.0834228472.

The spelling of 7881590130 in words is "seven billion, eight hundred eighty-one million, five hundred ninety thousand, one hundred thirty".