45542121335015 has 4 divisors (see below), whose sum is σ = 54650545602024. Its totient is φ = 36433697068008.

The previous prime is 45542121334981. The next prime is 45542121335017. The reversal of 45542121335015 is 51053312124554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45542121335015 - 2¹⁰ = 45542121333991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45542121335017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4554212133497 + ... + 4554212133506.

It is an arithmetic number, because the mean of its divisors is an integer number (13662636400506).

Almost surely, 2^{45542121335015} is an apocalyptic number.

45542121335015 is a deficient number, since it is larger than the sum of its proper divisors (9108424267009).

45542121335015 is an equidigital number, since it uses as much as digits as its factorization.

45542121335015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9108424267008.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 45542121335015 its reverse (51053312124554), we get a palindrome (96595433459569).

The spelling of 45542121335015 in words is "forty-five trillion, five hundred forty-two billion, one hundred twenty-one million, three hundred thirty-five thousand, fifteen".