13487813831 has 2 divisors, whose sum is σ = 13487813832. Its totient is φ = 13487813830.

The previous prime is 13487813743. The next prime is 13487813851. The reversal of 13487813831 is 13831878431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13487813831 - 2¹⁴ = 13487797447 is a prime.

It is a super-2 number, since 2×13487813831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13487813851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743906915 + 6743906916.

It is an arithmetic number, because the mean of its divisors is an integer number (6743906916).

Almost surely, 2^13487813831 is an apocalyptic number.

13487813831 is a deficient number, since it is larger than the sum of its proper divisors (1).

13487813831 is an equidigital number, since it uses as much as digits as its factorization.

13487813831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The spelling of 13487813831 in words is "thirteen billion, four hundred eighty-seven million, eight hundred thirteen thousand, eight hundred thirty-one".