28746530999 has 2 divisors, whose sum is σ = 28746531000. Its totient is φ = 28746530998.

The previous prime is 28746530977. The next prime is 28746531007. The reversal of 28746530999 is 99903564782.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28746530999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28746530929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14373265499 + 14373265500.

It is an arithmetic number, because the mean of its divisors is an integer number (14373265500).

Almost surely, 2^28746530999 is an apocalyptic number.

28746530999 is a deficient number, since it is larger than the sum of its proper divisors (1).

28746530999 is an equidigital number, since it uses as much as digits as its factorization.

28746530999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 28746530999 in words is "twenty-eight billion, seven hundred forty-six million, five hundred thirty thousand, nine hundred ninety-nine".