7626703561 has 9 divisors (see below), whose sum is σ = 7974816871. Its totient is φ = 7293186472.

The previous prime is 7626703559. The next prime is 7626703597. The reversal of 7626703561 is 1653076267.

The square root of 7626703561 is 87331.

It is a perfect power (a square), and thus also a powerful number.

7626703561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 100100025 + 7526603536 = 10005^2 + 86756^2 .

It is not a de Polignac number, because 7626703561 - 2¹ = 7626703559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7626703501) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2006715 + ... + 2010511.

Almost surely, 2^7626703561 is an apocalyptic number.

7626703561 is the 87331-st square number.

7626703561 is the 43666-th centered octagonal number.

It is an amenable number.

7626703561 is a deficient number, since it is larger than the sum of its proper divisors (348113310).

7626703561 is an frugal number, since it uses more digits than its factorization.

7626703561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7640 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The cubic root of 7626703561 is about 1968.3951612499.

The spelling of 7626703561 in words is "seven billion, six hundred twenty-six million, seven hundred three thousand, five hundred sixty-one".