28750074913 has 4 divisors (see below), whose sum is σ = 32857228480. Its totient is φ = 24642921348.

The previous prime is 28750074893. The next prime is 28750074929. The reversal of 28750074913 is 31947005782.

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 not a de Polignac number, because 28750074913 - 2³³ = 20160140321 is a prime.

It is a super-2 number, since 2×28750074913² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28750074953) 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, 2053576773 + ... + 2053576786.

It is an arithmetic number, because the mean of its divisors is an integer number (8214307120).

Almost surely, 2^28750074913 is an apocalyptic number.

It is an amenable number.

28750074913 is a deficient number, since it is larger than the sum of its proper divisors (4107153567).

28750074913 is an equidigital number, since it uses as much as digits as its factorization.

28750074913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107153566.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 28750074913 in words is "twenty-eight billion, seven hundred fifty million, seventy-four thousand, nine hundred thirteen".