13542321541 has 8 divisors (see below), whose sum is σ = 15792795200. Its totient is φ = 11607703884.

The previous prime is 13542321521. The next prime is 13542321557. The reversal of 13542321541 is 14512324531.

It is not a de Polignac number, because 13542321541 - 2⁵ = 13542321509 is a prime.

It is a super-2 number, since 2×13542321541² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13542321521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19740651 + ... + 19741336.

It is an arithmetic number, because the mean of its divisors is an integer number (1974099400).

Almost surely, 2^13542321541 is an apocalyptic number.

It is an amenable number.

13542321541 is a deficient number, since it is larger than the sum of its proper divisors (2250473659).

13542321541 is an frugal number, since it uses more digits than its factorization.

13542321541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39482008 (or 39481994 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The spelling of 13542321541 in words is "thirteen billion, five hundred forty-two million, three hundred twenty-one thousand, five hundred forty-one".