13887651541 has 2 divisors, whose sum is σ = 13887651542. Its totient is φ = 13887651540.

The previous prime is 13887651511. The next prime is 13887651571. The reversal of 13887651541 is 14515678831.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (13887651511) and next prime (13887651571).

It can be written as a sum of positive squares in only one way, i.e., 7570740100 + 6316911441 = 87010^2 + 79479^2 .

It is an emirp because it is prime and its reverse (14515678831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13887651541 - 2³¹ = 11740167893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13887651511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6943825770 + 6943825771.

It is an arithmetic number, because the mean of its divisors is an integer number (6943825771).

Almost surely, 2^13887651541 is an apocalyptic number.

It is an amenable number.

13887651541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13887651541 is an equidigital number, since it uses as much as digits as its factorization.

13887651541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 49.

The spelling of 13887651541 in words is "thirteen billion, eight hundred eighty-seven million, six hundred fifty-one thousand, five hundred forty-one".