8791131348 has 36 divisors (see below), whose sum is σ = 22224983508. Its totient is φ = 2929987200.

The previous prime is 8791131347. The next prime is 8791131353. The reversal of 8791131348 is 8431311978.

It can be written as a sum of positive squares in 2 ways, for example, as 6485403024 + 2305728324 = 80532^2 + 48018^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8791131347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414490 + ... + 435182.

It is an arithmetic number, because the mean of its divisors is an integer number (617360653).

Almost surely, 2^8791131348 is an apocalyptic number.

It is an amenable number.

8791131348 is an abundant number, since it is smaller than the sum of its proper divisors (13433852160).

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

8791131348 is a wasteful number, since it uses less digits than its factorization.

8791131348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32504 (or 32499 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8791131348 is about 93761.0332067645. The cubic root of 8791131348 is about 2063.8664422548.

The spelling of 8791131348 in words is "eight billion, seven hundred ninety-one million, one hundred thirty-one thousand, three hundred forty-eight".