13644799042 has 32 divisors (see below), whose sum is σ = 24840144000. Its totient is φ = 5490955008.

The previous prime is 13644799037. The next prime is 13644799043. The reversal of 13644799042 is 24099744631.

It is not an unprimeable number, because it can be changed into a prime (13644799043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196917 + ... + 257032.

It is an arithmetic number, because the mean of its divisors is an integer number (776254500).

Almost surely, 2^13644799042 is an apocalyptic number.

13644799042 is a deficient number, since it is larger than the sum of its proper divisors (11195344958).

13644799042 is a wasteful number, since it uses less digits than its factorization.

13644799042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454090.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 13644799042 in words is "thirteen billion, six hundred forty-four million, seven hundred ninety-nine thousand, forty-two".