42606540919 has 2 divisors, whose sum is σ = 42606540920. Its totient is φ = 42606540918.

The previous prime is 42606540881. The next prime is 42606540929. The reversal of 42606540919 is 91904560624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42606540919 - 2⁷ = 42606540791 is a prime.

It is a super-2 number, since 2×42606540919² (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 (42606540929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21303270459 + 21303270460.

It is an arithmetic number, because the mean of its divisors is an integer number (21303270460).

Almost surely, 2^42606540919 is an apocalyptic number.

42606540919 is a deficient number, since it is larger than the sum of its proper divisors (1).

42606540919 is an equidigital number, since it uses as much as digits as its factorization.

42606540919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 42606540919 in words is "forty-two billion, six hundred six million, five hundred forty thousand, nine hundred nineteen".