28890924319 has 2 divisors, whose sum is σ = 28890924320. Its totient is φ = 28890924318.

The previous prime is 28890924281. The next prime is 28890924343. The reversal of 28890924319 is 91342909882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28890924319 - 2¹⁹ = 28890400031 is a prime.

It is a super-2 number, since 2×28890924319² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28890924319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28890924619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14445462159 + 14445462160.

It is an arithmetic number, because the mean of its divisors is an integer number (14445462160).

Almost surely, 2^28890924319 is an apocalyptic number.

28890924319 is a deficient number, since it is larger than the sum of its proper divisors (1).

28890924319 is an equidigital number, since it uses as much as digits as its factorization.

28890924319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 28890924319 in words is "twenty-eight billion, eight hundred ninety million, nine hundred twenty-four thousand, three hundred nineteen".