3726561573 has 80 divisors (see below), whose sum is σ = 6554908800. Its totient is φ = 2108840832.

The previous prime is 3726561563. The next prime is 3726561581. The reversal of 3726561573 is 3751656273.

3726561573 is a `hidden beast` number, since 3 + 7 + 26 + 5 + 615 + 7 + 3 = 666.

It is not a de Polignac number, because 3726561573 - 2⁴ = 3726561557 is a prime.

It is a super-2 number, since 2×3726561573² = 27774522314720468658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3726561563) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 3138886 + ... + 3140072.

It is an arithmetic number, because the mean of its divisors is an integer number (81936360).

Almost surely, 2^3726561573 is an apocalyptic number.

It is an amenable number.

3726561573 is a deficient number, since it is larger than the sum of its proper divisors (2828347227).

3726561573 is a wasteful number, since it uses less digits than its factorization.

3726561573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1310 counting only the distinct ones).

The product of its digits is 793800, while the sum is 45.

The square root of 3726561573 is about 61045.5696426858. The cubic root of 3726561573 is about 1550.3726572580.

The spelling of 3726561573 in words is "three billion, seven hundred twenty-six million, five hundred sixty-one thousand, five hundred seventy-three".