42788351423 has 2 divisors, whose sum is σ = 42788351424. Its totient is φ = 42788351422.

The previous prime is 42788351393. The next prime is 42788351429. The reversal of 42788351423 is 32415388724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42788351423 - 2¹⁶ = 42788285887 is a prime.

It is a super-2 number, since 2×42788351423² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42788351429) 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, 21394175711 + 21394175712.

It is an arithmetic number, because the mean of its divisors is an integer number (21394175712).

Almost surely, 2^42788351423 is an apocalyptic number.

42788351423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42788351423 is an equidigital number, since it uses as much as digits as its factorization.

42788351423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 47.

The spelling of 42788351423 in words is "forty-two billion, seven hundred eighty-eight million, three hundred fifty-one thousand, four hundred twenty-three".