13539292805 has 8 divisors (see below), whose sum is σ = 16260293112. Its totient is φ = 10822673088.

The previous prime is 13539292777. The next prime is 13539292807. The reversal of 13539292805 is 50829293531.

It can be written as a sum of positive squares in 4 ways, for example, as 2048739169 + 11490553636 = 45263^2 + 107194^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13539292805 - 2³² = 9244325509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13539292805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539292807) 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, 1088342 + ... + 1100711.

It is an arithmetic number, because the mean of its divisors is an integer number (2032536639).

Almost surely, 2^13539292805 is an apocalyptic number.

It is an amenable number.

13539292805 is a deficient number, since it is larger than the sum of its proper divisors (2721000307).

13539292805 is a wasteful number, since it uses less digits than its factorization.

13539292805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190295.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 13539292805 in words is "thirteen billion, five hundred thirty-nine million, two hundred ninety-two thousand, eight hundred five".