28080023551 has 2 divisors, whose sum is σ = 28080023552. Its totient is φ = 28080023550.

The previous prime is 28080023527. The next prime is 28080023557. The reversal of 28080023551 is 15532008082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28080023551 - 2⁹ = 28080023039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28080023557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040011775 + 14040011776.

It is an arithmetic number, because the mean of its divisors is an integer number (14040011776).

Almost surely, 2^28080023551 is an apocalyptic number.

28080023551 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080023551 is an equidigital number, since it uses as much as digits as its factorization.

28080023551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 28080023551 in words is "twenty-eight billion, eighty million, twenty-three thousand, five hundred fifty-one".