13949217542 has 16 divisors (see below), whose sum is σ = 22539126960. Its totient is φ = 6436450272.

The previous prime is 13949217511. The next prime is 13949217547. The reversal of 13949217542 is 24571294931.

13949217542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949217547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37748 + ... + 171240.

It is an arithmetic number, because the mean of its divisors is an integer number (1408695435).

Almost surely, 2^13949217542 is an apocalyptic number.

13949217542 is a deficient number, since it is larger than the sum of its proper divisors (8589909418).

13949217542 is a wasteful number, since it uses less digits than its factorization.

13949217542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137527.

The product of its digits is 544320, while the sum is 47.

The spelling of 13949217542 in words is "thirteen billion, nine hundred forty-nine million, two hundred seventeen thousand, five hundred forty-two".