8115774548 has 18 divisors (see below), whose sum is σ = 16521398586. Its totient is φ = 3478189008.

The previous prime is 8115774539. The next prime is 8115774553. The reversal of 8115774548 is 8454775118.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4945183684 + 3170590864 = 70322^2 + 56308^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8115774496 and 8115774505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20703311 + ... + 20703702.

It is an arithmetic number, because the mean of its divisors is an integer number (917855477).

Almost surely, 2^8115774548 is an apocalyptic number.

It is an amenable number.

8115774548 is an abundant number, since it is smaller than the sum of its proper divisors (8405624038).

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

8115774548 is a wasteful number, since it uses less digits than its factorization.

8115774548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41407031 (or 41407022 counting only the distinct ones).

The product of its digits is 1254400, while the sum is 50.

The square root of 8115774548 is about 90087.5937518591. The cubic root of 8115774548 is about 2009.6017088264.

The spelling of 8115774548 in words is "eight billion, one hundred fifteen million, seven hundred seventy-four thousand, five hundred forty-eight".