42986955719 has 2 divisors, whose sum is σ = 42986955720. Its totient is φ = 42986955718.

The previous prime is 42986955689. The next prime is 42986955743. The reversal of 42986955719 is 91755968924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42986955719 is a prime.

It is a super-2 number, since 2×42986955719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42986955779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21493477859 + 21493477860.

It is an arithmetic number, because the mean of its divisors is an integer number (21493477860).

Almost surely, 2^42986955719 is an apocalyptic number.

42986955719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42986955719 is an equidigital number, since it uses as much as digits as its factorization.

42986955719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 65.

The spelling of 42986955719 in words is "forty-two billion, nine hundred eighty-six million, nine hundred fifty-five thousand, seven hundred nineteen".