11220763539 has 4 divisors (see below), whose sum is σ = 14961018056. Its totient is φ = 7480509024.

The previous prime is 11220763531. The next prime is 11220763553. The reversal of 11220763539 is 93536702211.

It is a happy number.

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

It is not a de Polignac number, because 11220763539 - 2³ = 11220763531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220763497 and 11220763506.

It is not an unprimeable number, because it can be changed into a prime (11220763531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870127254 + ... + 1870127259.

It is an arithmetic number, because the mean of its divisors is an integer number (3740254514).

Almost surely, 2^11220763539 is an apocalyptic number.

11220763539 is a deficient number, since it is larger than the sum of its proper divisors (3740254517).

11220763539 is an equidigital number, since it uses as much as digits as its factorization.

11220763539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740254516.

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 11220763539 in words is "eleven billion, two hundred twenty million, seven hundred sixty-three thousand, five hundred thirty-nine".