7931481120 has 144 divisors (see below), whose sum is σ = 28068768000. Its totient is φ = 2115051264.

The previous prime is 7931481073. The next prime is 7931481127. The reversal of 7931481120 is 211841397.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7931481127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63120 + ... + 140879.

It is an arithmetic number, because the mean of its divisors is an integer number (194922000).

Almost surely, 2^7931481120 is an apocalyptic number.

It is an amenable number.

7931481120 is an abundant number, since it is smaller than the sum of its proper divisors (20137286880).

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

7931481120 is a wasteful number, since it uses less digits than its factorization.

7931481120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204029 (or 204009 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 7931481120 is about 89058.8632310114. The cubic root of 7931481120 is about 1994.2737138038.

The spelling of 7931481120 in words is "seven billion, nine hundred thirty-one million, four hundred eighty-one thousand, one hundred twenty".