11638980583 has 2 divisors, whose sum is σ = 11638980584. Its totient is φ = 11638980582.

The previous prime is 11638980569. The next prime is 11638980593. The reversal of 11638980583 is 38508983611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11638980583 - 2⁹ = 11638980071 is a prime.

It is a super-2 number, since 2×11638980583² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11638980583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11638980593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819490291 + 5819490292.

It is an arithmetic number, because the mean of its divisors is an integer number (5819490292).

Almost surely, 2^11638980583 is an apocalyptic number.

11638980583 is a deficient number, since it is larger than the sum of its proper divisors (1).

11638980583 is an equidigital number, since it uses as much as digits as its factorization.

11638980583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 11638980583 in words is "eleven billion, six hundred thirty-eight million, nine hundred eighty thousand, five hundred eighty-three".