13642144972 has 12 divisors (see below), whose sum is σ = 25278092280. Its totient is φ = 6419832896.

The previous prime is 13642144969. The next prime is 13642144973. The reversal of 13642144972 is 27944124631.

It is a super-2 number, since 2×13642144972² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13642144973) 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, 100309822 + ... + 100309957.

It is an arithmetic number, because the mean of its divisors is an integer number (2106507690).

Almost surely, 2^13642144972 is an apocalyptic number.

It is an amenable number.

13642144972 is a deficient number, since it is larger than the sum of its proper divisors (11635947308).

13642144972 is a wasteful number, since it uses less digits than its factorization.

13642144972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200619800 (or 200619798 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The spelling of 13642144972 in words is "thirteen billion, six hundred forty-two million, one hundred forty-four thousand, nine hundred seventy-two".