13782638587 has 2 divisors, whose sum is σ = 13782638588. Its totient is φ = 13782638586.

The previous prime is 13782638581. The next prime is 13782638603. The reversal of 13782638587 is 78583628731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13782638587 - 2⁷ = 13782638459 is a prime.

It is a super-2 number, since 2×13782638587² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13782638581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6891319293 + 6891319294.

It is an arithmetic number, because the mean of its divisors is an integer number (6891319294).

Almost surely, 2^13782638587 is an apocalyptic number.

13782638587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13782638587 is an equidigital number, since it uses as much as digits as its factorization.

13782638587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 58.

The spelling of 13782638587 in words is "thirteen billion, seven hundred eighty-two million, six hundred thirty-eight thousand, five hundred eighty-seven".