42119685062491 has 2 divisors, whose sum is σ = 42119685062492. Its totient is φ = 42119685062490.

The previous prime is 42119685062339. The next prime is 42119685062537. The reversal of 42119685062491 is 19426058691124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42119685062491 - 2¹⁹ = 42119684538203 is a prime.

It is not a weakly prime, because it can be changed into another prime (42119685062291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21059842531245 + 21059842531246.

It is an arithmetic number, because the mean of its divisors is an integer number (21059842531246).

Almost surely, 2^{42119685062491} is an apocalyptic number.

42119685062491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42119685062491 is an equidigital number, since it uses as much as digits as its factorization.

42119685062491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 42119685062491 in words is "forty-two trillion, one hundred nineteen billion, six hundred eighty-five million, sixty-two thousand, four hundred ninety-one".