11939400028544 has 32 divisors (see below), whose sum is σ = 23786153162040. Its totient is φ = 5969541980160.

The previous prime is 11939400028537. The next prime is 11939400028547. The reversal of 11939400028544 is 44582000493911.

11939400028544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 11939400028492 and 11939400028501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11939400028547) 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, 3696032 + ... + 6126944.

Almost surely, 2^{11939400028544} is an apocalyptic number.

It is an amenable number.

11939400028544 is a deficient number, since it is larger than the sum of its proper divisors (11846753133496).

11939400028544 is an equidigital number, since it uses as much as digits as its factorization.

11939400028544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469298 (or 2469286 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 11939400028544 in words is "eleven trillion, nine hundred thirty-nine billion, four hundred million, twenty-eight thousand, five hundred forty-four".