42611011613 has 2 divisors, whose sum is σ = 42611011614. Its totient is φ = 42611011612.

The previous prime is 42611011609. The next prime is 42611011633. The reversal of 42611011613 is 31611011624.

42611011613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37660059844 + 4950951769 = 194062^2 + 70363^2 .

It is a cyclic number.

It is not a de Polignac number, because 42611011613 - 2² = 42611011609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42611011633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21305505806 + 21305505807.

It is an arithmetic number, because the mean of its divisors is an integer number (21305505807).

Almost surely, 2^42611011613 is an apocalyptic number.

It is an amenable number.

42611011613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42611011613 is an equidigital number, since it uses as much as digits as its factorization.

42611011613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

It can be divided in two parts, 42611011 and 613, that added together give a palindrome (42611624).

The spelling of 42611011613 in words is "forty-two billion, six hundred eleven million, eleven thousand, six hundred thirteen".