28758260254413 has 4 divisors (see below), whose sum is σ = 38344347005888. Its totient is φ = 19172173502940.

The previous prime is 28758260254403. The next prime is 28758260254421. The reversal of 28758260254413 is 31445206285782.

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 not a de Polignac number, because 28758260254413 - 2⁶ = 28758260254349 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 (28758260254403) 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, 4793043375733 + ... + 4793043375738.

It is an arithmetic number, because the mean of its divisors is an integer number (9586086751472).

Almost surely, 2^{28758260254413} is an apocalyptic number.

It is an amenable number.

28758260254413 is a deficient number, since it is larger than the sum of its proper divisors (9586086751475).

28758260254413 is an equidigital number, since it uses as much as digits as its factorization.

28758260254413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9586086751474.

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 28758260254413 in words is "twenty-eight trillion, seven hundred fifty-eight billion, two hundred sixty million, two hundred fifty-four thousand, four hundred thirteen".