11087761305 has 32 divisors (see below), whose sum is σ = 18175394304. Its totient is φ = 5769280256.

The previous prime is 11087761297. The next prime is 11087761309. The reversal of 11087761305 is 50316778011.

It is a cyclic number.

It is not a de Polignac number, because 11087761305 - 2³ = 11087761297 is a prime.

It is a super-3 number, since 3×11087761305³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11087761309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198679 + ... + 248291.

It is an arithmetic number, because the mean of its divisors is an integer number (567981072).

Almost surely, 2^11087761305 is an apocalyptic number.

11087761305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11087761305 is a deficient number, since it is larger than the sum of its proper divisors (7087632999).

11087761305 is a wasteful number, since it uses less digits than its factorization.

11087761305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49985.

The product of its (nonzero) digits is 35280, while the sum is 39.

The spelling of 11087761305 in words is "eleven billion, eighty-seven million, seven hundred sixty-one thousand, three hundred five".