7759042561 has 16 divisors (see below), whose sum is σ = 8029612800. Its totient is φ = 7491849408.

The previous prime is 7759042541. The next prime is 7759042609. The reversal of 7759042561 is 1652409577.

It is a cyclic number.

It is not a de Polignac number, because 7759042561 - 2¹³ = 7759034369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7759042541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5881860 + ... + 5883178.

It is an arithmetic number, because the mean of its divisors is an integer number (501850800).

Almost surely, 2^7759042561 is an apocalyptic number.

It is an amenable number.

7759042561 is a deficient number, since it is larger than the sum of its proper divisors (270570239).

7759042561 is a wasteful number, since it uses less digits than its factorization.

7759042561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448.

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 7759042561 is about 88085.4276313625. The cubic root of 7759042561 is about 1979.7151718471.

The spelling of 7759042561 in words is "seven billion, seven hundred fifty-nine million, forty-two thousand, five hundred sixty-one".