13887651511 has 2 divisors, whose sum is σ = 13887651512. Its totient is φ = 13887651510.

The previous prime is 13887651451. The next prime is 13887651541. The reversal of 13887651511 is 11515678831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13887651511 - 2¹¹ = 13887649463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13887651541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6943825755 + 6943825756.

It is an arithmetic number, because the mean of its divisors is an integer number (6943825756).

Almost surely, 2^13887651511 is an apocalyptic number.

13887651511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13887651511 is an equidigital number, since it uses as much as digits as its factorization.

13887651511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 46.

The spelling of 13887651511 in words is "thirteen billion, eight hundred eighty-seven million, six hundred fifty-one thousand, five hundred eleven".