11635228838 has 4 divisors (see below), whose sum is σ = 17452843260. Its totient is φ = 5817614418.

The previous prime is 11635228837. The next prime is 11635228883. The reversal of 11635228838 is 83882253611.

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

It is a super-2 number, since 2×11635228838² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11635228792 and 11635228801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11635228837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2908807208 + ... + 2908807211.

It is an arithmetic number, because the mean of its divisors is an integer number (4363210815).

Almost surely, 2^11635228838 is an apocalyptic number.

11635228838 is a deficient number, since it is larger than the sum of its proper divisors (5817614422).

11635228838 is an equidigital number, since it uses as much as digits as its factorization.

11635228838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5817614421.

The product of its digits is 552960, while the sum is 47.

The spelling of 11635228838 in words is "eleven billion, six hundred thirty-five million, two hundred twenty-eight thousand, eight hundred thirty-eight".