13642223052 has 24 divisors (see below), whose sum is σ = 31854107376. Its totient is φ = 4544228608.

The previous prime is 13642222999. The next prime is 13642223057. The reversal of 13642223052 is 25032224631.

It is a super-2 number, since 2×13642223052² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13642223057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379473 + ... + 413864.

It is an arithmetic number, because the mean of its divisors is an integer number (1327254474).

Almost surely, 2^13642223052 is an apocalyptic number.

13642223052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13642223052 is an abundant number, since it is smaller than the sum of its proper divisors (18211884324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13642223052 is a wasteful number, since it uses less digits than its factorization.

13642223052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794777 (or 794775 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13642223052 its reverse (25032224631), we get a palindrome (38674447683).

The spelling of 13642223052 in words is "thirteen billion, six hundred forty-two million, two hundred twenty-three thousand, fifty-two".