42115644213719 has 2 divisors, whose sum is σ = 42115644213720. Its totient is φ = 42115644213718.

The previous prime is 42115644213637. The next prime is 42115644213737. The reversal of 42115644213719 is 91731244651124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42115644213719 - 2⁸ = 42115644213463 is a prime.

It is a super-2 number, since 2×42115644213719² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42115644213749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21057822106859 + 21057822106860.

It is an arithmetic number, because the mean of its divisors is an integer number (21057822106860).

Almost surely, 2^{42115644213719} is an apocalyptic number.

42115644213719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42115644213719 is an equidigital number, since it uses as much as digits as its factorization.

42115644213719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The spelling of 42115644213719 in words is "forty-two trillion, one hundred fifteen billion, six hundred forty-four million, two hundred thirteen thousand, seven hundred nineteen".