42821571319 has 2 divisors, whose sum is σ = 42821571320. Its totient is φ = 42821571318.

The previous prime is 42821571313. The next prime is 42821571323. The reversal of 42821571319 is 91317512824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42821571319 - 2³ = 42821571311 is a prime.

It is a super-2 number, since 2×42821571319² (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 (42821571311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21410785659 + 21410785660.

It is an arithmetic number, because the mean of its divisors is an integer number (21410785660).

Almost surely, 2^42821571319 is an apocalyptic number.

42821571319 is a deficient number, since it is larger than the sum of its proper divisors (1).

42821571319 is an equidigital number, since it uses as much as digits as its factorization.

42821571319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The spelling of 42821571319 in words is "forty-two billion, eight hundred twenty-one million, five hundred seventy-one thousand, three hundred nineteen".