28854457955 has 32 divisors (see below), whose sum is σ = 36296563968. Its totient is φ = 21996748800.

The previous prime is 28854457871. The next prime is 28854457981. The reversal of 28854457955 is 55975445882.

It is a Cunningham number, because it is equal to 169866²-1.

It is not a de Polignac number, because 28854457955 - 2¹⁰ = 28854456931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6282710 + ... + 6287300.

It is an arithmetic number, because the mean of its divisors is an integer number (1134267624).

Almost surely, 2^28854457955 is an apocalyptic number.

28854457955 is a deficient number, since it is larger than the sum of its proper divisors (7442106013).

28854457955 is a wasteful number, since it uses less digits than its factorization.

28854457955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327.

The product of its digits is 80640000, while the sum is 62.

The spelling of 28854457955 in words is "twenty-eight billion, eight hundred fifty-four million, four hundred fifty-seven thousand, nine hundred fifty-five".