28494570823 has 2 divisors, whose sum is σ = 28494570824. Its totient is φ = 28494570822.

The previous prime is 28494570799. The next prime is 28494570833. The reversal of 28494570823 is 32807549482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28494570823 - 2⁹ = 28494570311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28494570833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14247285411 + 14247285412.

It is an arithmetic number, because the mean of its divisors is an integer number (14247285412).

Almost surely, 2^28494570823 is an apocalyptic number.

28494570823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28494570823 is an equidigital number, since it uses as much as digits as its factorization.

28494570823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 28494570823 in words is "twenty-eight billion, four hundred ninety-four million, five hundred seventy thousand, eight hundred twenty-three".