28555042767 has 4 divisors (see below), whose sum is σ = 38073390360. Its totient is φ = 19036695176.

The previous prime is 28555042759. The next prime is 28555042787. The reversal of 28555042767 is 76724055582.

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 28555042767 - 2³ = 28555042759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28555042757) 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, 4759173792 + ... + 4759173797.

It is an arithmetic number, because the mean of its divisors is an integer number (9518347590).

Almost surely, 2^28555042767 is an apocalyptic number.

28555042767 is a deficient number, since it is larger than the sum of its proper divisors (9518347593).

28555042767 is an equidigital number, since it uses as much as digits as its factorization.

28555042767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518347592.

The product of its (nonzero) digits is 4704000, while the sum is 51.

The spelling of 28555042767 in words is "twenty-eight billion, five hundred fifty-five million, forty-two thousand, seven hundred sixty-seven".