28232912579 has 2 divisors, whose sum is σ = 28232912580. Its totient is φ = 28232912578.

The previous prime is 28232912557. The next prime is 28232912629. The reversal of 28232912579 is 97521923282.

It is a happy number.

It is an a-pointer prime, because the next prime (28232912629) can be obtained adding 28232912579 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28232912579 is a prime.

It is not a weakly prime, because it can be changed into another prime (28232912509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14116456289 + 14116456290.

It is an arithmetic number, because the mean of its divisors is an integer number (14116456290).

Almost surely, 2^28232912579 is an apocalyptic number.

28232912579 is a deficient number, since it is larger than the sum of its proper divisors (1).

28232912579 is an equidigital number, since it uses as much as digits as its factorization.

28232912579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The spelling of 28232912579 in words is "twenty-eight billion, two hundred thirty-two million, nine hundred twelve thousand, five hundred seventy-nine".