13530149879 has 2 divisors, whose sum is σ = 13530149880. Its totient is φ = 13530149878.

The previous prime is 13530149827. The next prime is 13530149921. The reversal of 13530149879 is 97894103531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13530149879 - 2¹⁶ = 13530084343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13530149819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765074939 + 6765074940.

It is an arithmetic number, because the mean of its divisors is an integer number (6765074940).

Almost surely, 2^13530149879 is an apocalyptic number.

13530149879 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530149879 is an equidigital number, since it uses as much as digits as its factorization.

13530149879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 13530149879 in words is "thirteen billion, five hundred thirty million, one hundred forty-nine thousand, eight hundred seventy-nine".