42720403519 has 2 divisors, whose sum is σ = 42720403520. Its totient is φ = 42720403518.

The previous prime is 42720403489. The next prime is 42720403547. The reversal of 42720403519 is 91530402724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42720403519 - 2¹⁹ = 42719879231 is a prime.

It is a super-2 number, since 2×42720403519² (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 (42720403559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21360201759 + 21360201760.

It is an arithmetic number, because the mean of its divisors is an integer number (21360201760).

Almost surely, 2^42720403519 is an apocalyptic number.

42720403519 is a deficient number, since it is larger than the sum of its proper divisors (1).

42720403519 is an equidigital number, since it uses as much as digits as its factorization.

42720403519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 42720403519 in words is "forty-two billion, seven hundred twenty million, four hundred three thousand, five hundred nineteen".