28223876477 has 8 divisors (see below), whose sum is σ = 30127786560. Its totient is φ = 26361810720.

The previous prime is 28223876413. The next prime is 28223876531. The reversal of 28223876477 is 77467832282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28223876477 - 2⁶ = 28223876413 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 (28223876677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10459688 + ... + 10462385.

It is an arithmetic number, because the mean of its divisors is an integer number (3765973320).

Almost surely, 2^28223876477 is an apocalyptic number.

It is an amenable number.

28223876477 is a deficient number, since it is larger than the sum of its proper divisors (1903910083).

28223876477 is a wasteful number, since it uses less digits than its factorization.

28223876477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20922163.

The product of its digits is 12644352, while the sum is 56.

The spelling of 28223876477 in words is "twenty-eight billion, two hundred twenty-three million, eight hundred seventy-six thousand, four hundred seventy-seven".