42155612142613 has 2 divisors, whose sum is σ = 42155612142614. Its totient is φ = 42155612142612.

The previous prime is 42155612142607. The next prime is 42155612142641. The reversal of 42155612142613 is 31624121655124.

42155612142613 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., 29834339774724 + 12321272367889 = 5462082^2 + 3510167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42155612142613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42155612142613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42155612142643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21077806071306 + 21077806071307.

It is an arithmetic number, because the mean of its divisors is an integer number (21077806071307).

Almost surely, 2^{42155612142613} is an apocalyptic number.

It is an amenable number.

42155612142613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42155612142613 is an equidigital number, since it uses as much as digits as its factorization.

42155612142613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 43.

Adding to 42155612142613 its reverse (31624121655124), we get a palindrome (73779733797737).

The spelling of 42155612142613 in words is "forty-two trillion, one hundred fifty-five billion, six hundred twelve million, one hundred forty-two thousand, six hundred thirteen".