13405045052 has 24 divisors (see below), whose sum is σ = 27357237600. Its totient is φ = 5745018720.

The previous prime is 13405044971. The next prime is 13405045097. The reversal of 13405045052 is 25054050431.

It is a super-2 number, since 2×13405045052² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4883849 + ... + 4886592.

It is an arithmetic number, because the mean of its divisors is an integer number (1139884900).

Almost surely, 2^13405045052 is an apocalyptic number.

It is an amenable number.

13405045052 is an abundant number, since it is smaller than the sum of its proper divisors (13952192548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13405045052 is an equidigital number, since it uses as much as digits as its factorization.

13405045052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9770466 (or 9770450 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 13405045052 its reverse (25054050431), we get a palindrome (38459095483).

The spelling of 13405045052 in words is "thirteen billion, four hundred five million, forty-five thousand, fifty-two".