7611661252 has 24 divisors (see below), whose sum is σ = 14580224792. Its totient is φ = 3455481600.

The previous prime is 7611661249. The next prime is 7611661273. The reversal of 7611661252 is 2521661167.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60746436 + 7550914816 = 7794^2 + 86896^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196649 + ... + 1202992.

Almost surely, 2^7611661252 is an apocalyptic number.

It is an amenable number.

7611661252 is a deficient number, since it is larger than the sum of its proper divisors (6968563540).

7611661252 is a wasteful number, since it uses less digits than its factorization.

7611661252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399719 (or 2399717 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 7611661252 is about 87244.8351021423. The cubic root of 7611661252 is about 1967.1002070293.

The spelling of 7611661252 in words is "seven billion, six hundred eleven million, six hundred sixty-one thousand, two hundred fifty-two".