42011179517 has 2 divisors, whose sum is σ = 42011179518. Its totient is φ = 42011179516.

The previous prime is 42011179493. The next prime is 42011179523. The reversal of 42011179517 is 71597111024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30830443396 + 11180736121 = 175586^2 + 105739^2 .

It is a cyclic number.

It is not a de Polignac number, because 42011179517 - 2⁶ = 42011179453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42011179117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21005589758 + 21005589759.

It is an arithmetic number, because the mean of its divisors is an integer number (21005589759).

Almost surely, 2^42011179517 is an apocalyptic number.

It is an amenable number.

42011179517 is a deficient number, since it is larger than the sum of its proper divisors (1).

42011179517 is an equidigital number, since it uses as much as digits as its factorization.

42011179517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 38.

The spelling of 42011179517 in words is "forty-two billion, eleven million, one hundred seventy-nine thousand, five hundred seventeen".