7261111089 has 24 divisors (see below), whose sum is σ = 10957401000. Its totient is φ = 4627526400.

The previous prime is 7261111049. The next prime is 7261111097. The reversal of 7261111089 is 9801111627.

It can be written as a sum of positive squares in 4 ways, for example, as 3305330064 + 3955781025 = 57492^2 + 62895^2 .

It is not a de Polignac number, because 7261111089 - 2¹¹ = 7261109041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7261111019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111364 + ... + 164085.

It is an arithmetic number, because the mean of its divisors is an integer number (456558375).

Almost surely, 2^7261111089 is an apocalyptic number.

It is an amenable number.

7261111089 is a deficient number, since it is larger than the sum of its proper divisors (3696289911).

7261111089 is a wasteful number, since it uses less digits than its factorization.

7261111089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275585 (or 275582 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The square root of 7261111089 is about 85212.1534113532. The cubic root of 7261111089 is about 1936.4265433453.

The spelling of 7261111089 in words is "seven billion, two hundred sixty-one million, one hundred eleven thousand, eighty-nine".