540784641919 has 2 divisors, whose sum is σ = 540784641920. Its totient is φ = 540784641918.

The previous prime is 540784641883. The next prime is 540784641931. The reversal of 540784641919 is 919146487045.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540784641919 - 2⁹ = 540784641407 is a prime.

It is a super-2 number, since 2×540784641919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540784641979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270392320959 + 270392320960.

It is an arithmetic number, because the mean of its divisors is an integer number (270392320960).

Almost surely, 2^540784641919 is an apocalyptic number.

540784641919 is a deficient number, since it is larger than the sum of its proper divisors (1).

540784641919 is an equidigital number, since it uses as much as digits as its factorization.

540784641919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 540784641919 in words is "five hundred forty billion, seven hundred eighty-four million, six hundred forty-one thousand, nine hundred nineteen".