2013653733545 has 4 divisors (see below), whose sum is σ = 2416384480260. Its totient is φ = 1610922986832.

The previous prime is 2013653733529. The next prime is 2013653733571. The reversal of 2013653733545 is 5453373563102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219575650921 + 1794078082624 = 468589^2 + 1339432^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013653733545 - 2⁴ = 2013653733529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2013653733545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201365373350 + ... + 201365373359.

It is an arithmetic number, because the mean of its divisors is an integer number (604096120065).

Almost surely, 2^{2013653733545} is an apocalyptic number.

It is an amenable number.

2013653733545 is a deficient number, since it is larger than the sum of its proper divisors (402730746715).

2013653733545 is an equidigital number, since it uses as much as digits as its factorization.

2013653733545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402730746714.

The product of its (nonzero) digits is 3402000, while the sum is 47.

The spelling of 2013653733545 in words is "two trillion, thirteen billion, six hundred fifty-three million, seven hundred thirty-three thousand, five hundred forty-five".