28790074113 has 4 divisors (see below), whose sum is σ = 38386765488. Its totient is φ = 19193382740.

The previous prime is 28790074109. The next prime is 28790074151. The reversal of 28790074113 is 31147009782.

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 28790074113 - 2² = 28790074109 is a prime.

It is a super-4 number, since 4×28790074113⁴ (a number of 43 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (28790074513) 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, 4798345683 + ... + 4798345688.

It is an arithmetic number, because the mean of its divisors is an integer number (9596691372).

Almost surely, 2^28790074113 is an apocalyptic number.

It is an amenable number.

28790074113 is a deficient number, since it is larger than the sum of its proper divisors (9596691375).

28790074113 is an equidigital number, since it uses as much as digits as its factorization.

28790074113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596691374.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 28790074113 in words is "twenty-eight billion, seven hundred ninety million, seventy-four thousand, one hundred thirteen".