28495254029 has 4 divisors (see below), whose sum is σ = 31085731680. Its totient is φ = 25904776380.

The previous prime is 28495253999. The next prime is 28495254071. The reversal of 28495254029 is 92045259482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28495254029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28495754029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295238809 + ... + 1295238830.

It is an arithmetic number, because the mean of its divisors is an integer number (7771432920).

Almost surely, 2^28495254029 is an apocalyptic number.

It is an amenable number.

28495254029 is a deficient number, since it is larger than the sum of its proper divisors (2590477651).

28495254029 is a wasteful number, since it uses less digits than its factorization.

28495254029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590477650.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 28495254029 in words is "twenty-eight billion, four hundred ninety-five million, two hundred fifty-four thousand, twenty-nine".