13742542644 has 24 divisors (see below), whose sum is σ = 32471832960. Its totient is φ = 4522861824.

The previous prime is 13742542643. The next prime is 13742542651. The reversal of 13742542644 is 44624524731.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13742542596 and 13742542605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13742542643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7247229 + ... + 7249124.

It is an arithmetic number, because the mean of its divisors is an integer number (1352993040).

Almost surely, 2^13742542644 is an apocalyptic number.

It is an amenable number.

13742542644 is an abundant number, since it is smaller than the sum of its proper divisors (18729290316).

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

13742542644 is a wasteful number, since it uses less digits than its factorization.

13742542644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14496439 (or 14496437 counting only the distinct ones).

The product of its digits is 645120, while the sum is 42.

The spelling of 13742542644 in words is "thirteen billion, seven hundred forty-two million, five hundred forty-two thousand, six hundred forty-four".