8349257572 has 24 divisors (see below), whose sum is σ = 14651503160. Its totient is φ = 4163132160.

The previous prime is 8349257561. The next prime is 8349257593. The reversal of 8349257572 is 2757529438.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1449629476 + 6899628096 = 38074^2 + 83064^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2983678 + ... + 2986474.

Almost surely, 2^8349257572 is an apocalyptic number.

It is an amenable number.

8349257572 is a deficient number, since it is larger than the sum of its proper divisors (6302245588).

8349257572 is a wasteful number, since it uses less digits than its factorization.

8349257572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591 (or 4589 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 52.

The square root of 8349257572 is about 91374.2719369079. The cubic root of 8349257572 is about 2028.6912359682.

The spelling of 8349257572 in words is "eight billion, three hundred forty-nine million, two hundred fifty-seven thousand, five hundred seventy-two".