13542539557 has 2 divisors, whose sum is σ = 13542539558. Its totient is φ = 13542539556.

The previous prime is 13542539531. The next prime is 13542539561. The reversal of 13542539557 is 75593524531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8715902881 + 4826636676 = 93359^2 + 69474^2 .

It is a cyclic number.

It is not a de Polignac number, because 13542539557 - 2³¹ = 11395055909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13542539557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13542539597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771269778 + 6771269779.

It is an arithmetic number, because the mean of its divisors is an integer number (6771269779).

Almost surely, 2^13542539557 is an apocalyptic number.

It is an amenable number.

13542539557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13542539557 is an equidigital number, since it uses as much as digits as its factorization.

13542539557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835000, while the sum is 49.

The spelling of 13542539557 in words is "thirteen billion, five hundred forty-two million, five hundred thirty-nine thousand, five hundred fifty-seven".