12567081019 has 2 divisors, whose sum is σ = 12567081020. Its totient is φ = 12567081018.

The previous prime is 12567081017. The next prime is 12567081029. The reversal of 12567081019 is 91018076521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12567081019 - 2¹ = 12567081017 is a prime.

It is a super-2 number, since 2×12567081019² (a number of 21 digits) contains 22 as substring.

Together with 12567081017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12567081013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6283540509 + 6283540510.

It is an arithmetic number, because the mean of its divisors is an integer number (6283540510).

Almost surely, 2^12567081019 is an apocalyptic number.

12567081019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12567081019 is an equidigital number, since it uses as much as digits as its factorization.

12567081019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 12567081019 in words is "twelve billion, five hundred sixty-seven million, eighty-one thousand, nineteen".