13511043979 has 2 divisors, whose sum is σ = 13511043980. Its totient is φ = 13511043978.

The previous prime is 13511043919. The next prime is 13511044087. The reversal of 13511043979 is 97934011531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13511043979 - 2¹⁹ = 13510519691 is a prime.

It is not a weakly prime, because it can be changed into another prime (13511043919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6755521989 + 6755521990.

It is an arithmetic number, because the mean of its divisors is an integer number (6755521990).

Almost surely, 2^13511043979 is an apocalyptic number.

13511043979 is a deficient number, since it is larger than the sum of its proper divisors (1).

13511043979 is an equidigital number, since it uses as much as digits as its factorization.

13511043979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 43.

The spelling of 13511043979 in words is "thirteen billion, five hundred eleven million, forty-three thousand, nine hundred seventy-nine".