7256741261 has 16 divisors (see below), whose sum is σ = 9579565440. Its totient is φ = 5321978880.

The previous prime is 7256741161. The next prime is 7256741333. The reversal of 7256741261 is 1621476527.

It is a cyclic number.

It is not a de Polignac number, because 7256741261 - 2¹⁸ = 7256479117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256741161) 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, 2770556 + ... + 2773173.

It is an arithmetic number, because the mean of its divisors is an integer number (598722840).

Almost surely, 2^7256741261 is an apocalyptic number.

It is an amenable number.

7256741261 is a deficient number, since it is larger than the sum of its proper divisors (2322824179).

7256741261 is a wasteful number, since it uses less digits than its factorization.

7256741261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543764.

The product of its digits is 141120, while the sum is 41.

The square root of 7256741261 is about 85186.5086794852. The cubic root of 7256741261 is about 1936.0380101087.

The spelling of 7256741261 in words is "seven billion, two hundred fifty-six million, seven hundred forty-one thousand, two hundred sixty-one".