2238635496899 has 4 divisors (see below), whose sum is σ = 2238639825264. Its totient is φ = 2238631168536.

The previous prime is 2238635496887. The next prime is 2238635496943. The reversal of 2238635496899 is 9986945368322.

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

It is a cyclic number.

It is not a de Polignac number, because 2238635496899 - 2²⁸ = 2238367061443 is a prime.

It is a super-2 number, since 2×2238635496899² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238635496869) 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, 1263407 + ... + 2464440.

It is an arithmetic number, because the mean of its divisors is an integer number (559659956316).

Almost surely, 2^{2238635496899} is an apocalyptic number.

2238635496899 is a deficient number, since it is larger than the sum of its proper divisors (4328365).

2238635496899 is an equidigital number, since it uses as much as digits as its factorization.

2238635496899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328364.

The product of its digits is 1209323520, while the sum is 74.

The spelling of 2238635496899 in words is "two trillion, two hundred thirty-eight billion, six hundred thirty-five million, four hundred ninety-six thousand, eight hundred ninety-nine".