11007721577 has 4 divisors (see below), whose sum is σ = 11012442180. Its totient is φ = 11003000976.

The previous prime is 11007721531. The next prime is 11007721589. The reversal of 11007721577 is 77512770011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4089474601 + 6918246976 = 63949^2 + 83176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11007721577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11007721577.

It is not an unprimeable number, because it can be changed into a prime (11007721507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356802 + ... + 2361467.

It is an arithmetic number, because the mean of its divisors is an integer number (2753110545).

Almost surely, 2^11007721577 is an apocalyptic number.

It is an amenable number.

11007721577 is a deficient number, since it is larger than the sum of its proper divisors (4720603).

11007721577 is an equidigital number, since it uses as much as digits as its factorization.

11007721577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720602.

The product of its (nonzero) digits is 24010, while the sum is 38.

The spelling of 11007721577 in words is "eleven billion, seven million, seven hundred twenty-one thousand, five hundred seventy-seven".