28774226127 has 4 divisors (see below), whose sum is σ = 38365634840. Its totient is φ = 19182817416.

The previous prime is 28774226093. The next prime is 28774226141. The reversal of 28774226127 is 72162247782.

It is a happy number.

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

It is not a de Polignac number, because 28774226127 - 2⁷ = 28774225999 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 (28774226527) 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, 4795704352 + ... + 4795704357.

It is an arithmetic number, because the mean of its divisors is an integer number (9591408710).

Almost surely, 2^28774226127 is an apocalyptic number.

28774226127 is a deficient number, since it is larger than the sum of its proper divisors (9591408713).

28774226127 is an equidigital number, since it uses as much as digits as its factorization.

28774226127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9591408712.

The product of its digits is 1053696, while the sum is 48.

The spelling of 28774226127 in words is "twenty-eight billion, seven hundred seventy-four million, two hundred twenty-six thousand, one hundred twenty-seven".