13628678933 has 4 divisors (see below), whose sum is σ = 13792879968. Its totient is φ = 13464477900.

The previous prime is 13628678887. The next prime is 13628678993. The reversal of 13628678933 is 33987682631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13628678933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628678993) 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, 82100393 + ... + 82100558.

It is an arithmetic number, because the mean of its divisors is an integer number (3448219992).

Almost surely, 2^13628678933 is an apocalyptic number.

It is an amenable number.

13628678933 is a deficient number, since it is larger than the sum of its proper divisors (164201035).

13628678933 is an equidigital number, since it uses as much as digits as its factorization.

13628678933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164201034.

The product of its digits is 7838208, while the sum is 56.

The spelling of 13628678933 in words is "thirteen billion, six hundred twenty-eight million, six hundred seventy-eight thousand, nine hundred thirty-three".