28057730419 has 2 divisors, whose sum is σ = 28057730420. Its totient is φ = 28057730418.

The previous prime is 28057730417. The next prime is 28057730447. The reversal of 28057730419 is 91403775082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28057730419 - 2¹ = 28057730417 is a prime.

It is a super-2 number, since 2×28057730419² (a number of 22 digits) contains 22 as substring.

Together with 28057730417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28057730417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028865209 + 14028865210.

It is an arithmetic number, because the mean of its divisors is an integer number (14028865210).

Almost surely, 2^28057730419 is an apocalyptic number.

28057730419 is a deficient number, since it is larger than the sum of its proper divisors (1).

28057730419 is an equidigital number, since it uses as much as digits as its factorization.

28057730419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 28057730419 in words is "twenty-eight billion, fifty-seven million, seven hundred thirty thousand, four hundred nineteen".