13022423638 has 16 divisors (see below), whose sum is σ = 22332203424. Its totient is φ = 5579026560.

The previous prime is 13022423627. The next prime is 13022423647. The reversal of 13022423638 is 83632422031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127123 + ... + 205438.

It is an arithmetic number, because the mean of its divisors is an integer number (1395762714).

Almost surely, 2^13022423638 is an apocalyptic number.

13022423638 is a deficient number, since it is larger than the sum of its proper divisors (9309779786).

13022423638 is a wasteful number, since it uses less digits than its factorization.

13022423638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335367.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 13022423638 its reverse (83632422031), we get a palindrome (96654845669).

The spelling of 13022423638 in words is "thirteen billion, twenty-two million, four hundred twenty-three thousand, six hundred thirty-eight".