42945037019 has 2 divisors, whose sum is σ = 42945037020. Its totient is φ = 42945037018.

The previous prime is 42945036949. The next prime is 42945037081. The reversal of 42945037019 is 91073054924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42945037019 - 2²⁰ = 42943988443 is a prime.

It is a super-2 number, since 2×42945037019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42945037519) 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, 21472518509 + 21472518510.

It is an arithmetic number, because the mean of its divisors is an integer number (21472518510).

Almost surely, 2^42945037019 is an apocalyptic number.

42945037019 is a deficient number, since it is larger than the sum of its proper divisors (1).

42945037019 is an equidigital number, since it uses as much as digits as its factorization.

42945037019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 42945037019 in words is "forty-two billion, nine hundred forty-five million, thirty-seven thousand, nineteen".