13870544507831 has 8 divisors (see below), whose sum is σ = 15387969254400. Its totient is φ = 12395864120440.

The previous prime is 13870544507789. The next prime is 13870544507843.

13870544507831 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13870544507831 is a prime.

It is a super-2 number, since 2×13870544507831² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13870544507851) 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, 10686089111 + ... + 10686090408.

It is an arithmetic number, because the mean of its divisors is an integer number (1923496156800).

Almost surely, 2^{13870544507831} is an apocalyptic number.

13870544507831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13870544507831 is a deficient number, since it is larger than the sum of its proper divisors (1517424746569).

13870544507831 is a wasteful number, since it uses less digits than its factorization.

13870544507831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21372179589.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 13870544507831 in words is "thirteen trillion, eight hundred seventy billion, five hundred forty-four million, five hundred seven thousand, eight hundred thirty-one".