13906345501439 has 32 divisors (see below), whose sum is σ = 14458255999488. Its totient is φ = 13361356800000.

The previous prime is 13906345501357. The next prime is 13906345501441. The reversal of 13906345501439 is 93410554360931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13906345501439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13906345501459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2637271307 + ... + 2637276579.

It is an arithmetic number, because the mean of its divisors is an integer number (451820499984).

Almost surely, 2^{13906345501439} is an apocalyptic number.

13906345501439 is a deficient number, since it is larger than the sum of its proper divisors (551910498049).

13906345501439 is a wasteful number, since it uses less digits than its factorization.

13906345501439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659.

The product of its (nonzero) digits is 5248800, while the sum is 53.

The spelling of 13906345501439 in words is "thirteen trillion, nine hundred six billion, three hundred forty-five million, five hundred one thousand, four hundred thirty-nine".