28810625027 has 4 divisors (see below), whose sum is σ = 28816264920. Its totient is φ = 28804985136.

The previous prime is 28810625023. The next prime is 28810625029. The reversal of 28810625027 is 72052601882.

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 28810625027 - 2² = 28810625023 is a prime.

It is a super-2 number, since 2×28810625027² (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 (28810625023) 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, 2812277 + ... + 2822502.

It is an arithmetic number, because the mean of its divisors is an integer number (7204066230).

Almost surely, 2^28810625027 is an apocalyptic number.

28810625027 is a deficient number, since it is larger than the sum of its proper divisors (5639893).

28810625027 is an equidigital number, since it uses as much as digits as its factorization.

28810625027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639892.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 28810625027 in words is "twenty-eight billion, eight hundred ten million, six hundred twenty-five thousand, twenty-seven".