4042615645613 has 4 divisors (see below), whose sum is σ = 4108888033308. Its totient is φ = 3976343257920.

The previous prime is 4042615645603. The next prime is 4042615645631. The reversal of 4042615645613 is 3165465162404.

4042615645613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1680606289924 + 2362009355689 = 1296382^2 + 1536883^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042615645613 - 2⁸ = 4042615645357 is a prime.

It is a super-2 number, since 2×4042615645613² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042615645603) 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, 33136193756 + ... + 33136193877.

It is an arithmetic number, because the mean of its divisors is an integer number (1027222008327).

Almost surely, 2^{4042615645613} is an apocalyptic number.

It is an amenable number.

4042615645613 is a deficient number, since it is larger than the sum of its proper divisors (66272387695).

4042615645613 is an equidigital number, since it uses as much as digits as its factorization.

4042615645613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66272387694.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 4042615645613 in words is "four trillion, forty-two billion, six hundred fifteen million, six hundred forty-five thousand, six hundred thirteen".