28115054047 has 2 divisors, whose sum is σ = 28115054048. Its totient is φ = 28115054046.

The previous prime is 28115054029. The next prime is 28115054057. The reversal of 28115054047 is 74045051182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28115054047 - 2¹⁹ = 28114529759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28115053997 and 28115054015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28115054017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14057527023 + 14057527024.

It is an arithmetic number, because the mean of its divisors is an integer number (14057527024).

Almost surely, 2^28115054047 is an apocalyptic number.

28115054047 is a deficient number, since it is larger than the sum of its proper divisors (1).

28115054047 is an equidigital number, since it uses as much as digits as its factorization.

28115054047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 28115054047 in words is "twenty-eight billion, one hundred fifteen million, fifty-four thousand, forty-seven".