13644502535436 has 24 divisors (see below), whose sum is σ = 32577571946304. Its totient is φ = 4442396174160.

The previous prime is 13644502535423. The next prime is 13644502535471. The reversal of 13644502535436 is 63453520544631.

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, 13221416670 + ... + 13221417701.

It is an arithmetic number, because the mean of its divisors is an integer number (1357398831096).

Almost surely, 2^{13644502535436} is an apocalyptic number.

It is an amenable number.

13644502535436 is an abundant number, since it is smaller than the sum of its proper divisors (18933069410868).

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

13644502535436 is a wasteful number, since it uses less digits than its factorization.

13644502535436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26442834421 (or 26442834419 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 51.

The spelling of 13644502535436 in words is "thirteen trillion, six hundred forty-four billion, five hundred two million, five hundred thirty-five thousand, four hundred thirty-six".