2815257348 has 36 divisors (see below), whose sum is σ = 7155678348. Its totient is φ = 933232320.

The previous prime is 2815257301. The next prime is 2815257349. The reversal of 2815257348 is 8437525182.

2815257348 is a `hidden beast` number, since 2 + 81 + 525 + 7 + 3 + 48 = 666.

2815257348 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 316057284 + 2499200064 = 17778^2 + 49992^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2815257349) 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, 209511 + ... + 222542.

It is an arithmetic number, because the mean of its divisors is an integer number (198768843).

Almost surely, 2^2815257348 is an apocalyptic number.

It is an amenable number.

2815257348 is an abundant number, since it is smaller than the sum of its proper divisors (4340421000).

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

2815257348 is a wasteful number, since it uses less digits than its factorization.

2815257348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432244 (or 432239 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 2815257348 is about 53058.9987466782. The cubic root of 2815257348 is about 1412.0151839994.

The spelling of 2815257348 in words is "two billion, eight hundred fifteen million, two hundred fifty-seven thousand, three hundred forty-eight".