28540415999 has 2 divisors, whose sum is σ = 28540416000. Its totient is φ = 28540415998.

The previous prime is 28540415957. The next prime is 28540416103. The reversal of 28540415999 is 99951404582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28540415999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28540415909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14270207999 + 14270208000.

It is an arithmetic number, because the mean of its divisors is an integer number (14270208000).

Almost surely, 2^28540415999 is an apocalyptic number.

28540415999 is a deficient number, since it is larger than the sum of its proper divisors (1).

28540415999 is an equidigital number, since it uses as much as digits as its factorization.

28540415999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 28540415999 in words is "twenty-eight billion, five hundred forty million, four hundred fifteen thousand, nine hundred ninety-nine".