13768081531 has 2 divisors, whose sum is σ = 13768081532. Its totient is φ = 13768081530.

The previous prime is 13768081487. The next prime is 13768081571. The reversal of 13768081531 is 13518086731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13768081531 - 2¹⁷ = 13767950459 is a prime.

It is a super-2 number, since 2×13768081531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13768081571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6884040765 + 6884040766.

It is an arithmetic number, because the mean of its divisors is an integer number (6884040766).

Almost surely, 2^13768081531 is an apocalyptic number.

13768081531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13768081531 is an equidigital number, since it uses as much as digits as its factorization.

13768081531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 13768081531 in words is "thirteen billion, seven hundred sixty-eight million, eighty-one thousand, five hundred thirty-one".