28787800130179 has 4 divisors (see below), whose sum is σ = 29565848782384. Its totient is φ = 28009751477976.

The previous prime is 28787800130143. The next prime is 28787800130273. The reversal of 28787800130179 is 97103100878782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28787800130179 - 2⁷ = 28787800130051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28787800130879) 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, 389024326047 + ... + 389024326120.

It is an arithmetic number, because the mean of its divisors is an integer number (7391462195596).

Almost surely, 2^{28787800130179} is an apocalyptic number.

28787800130179 is a deficient number, since it is larger than the sum of its proper divisors (778048652205).

28787800130179 is an equidigital number, since it uses as much as digits as its factorization.

28787800130179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778048652204.

The product of its (nonzero) digits is 9483264, while the sum is 61.

The spelling of 28787800130179 in words is "twenty-eight trillion, seven hundred eighty-seven billion, eight hundred million, one hundred thirty thousand, one hundred seventy-nine".