28044417554 has 8 divisors (see below), whose sum is σ = 42082757820. Its totient is φ = 14016831616.

The previous prime is 28044417481. The next prime is 28044417581. The reversal of 28044417554 is 45571444082.

It can be written as a sum of positive squares in 2 ways, for example, as 26317599529 + 1726818025 = 162227^2 + 41555^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2682059 + ... + 2692494.

Almost surely, 2^28044417554 is an apocalyptic number.

28044417554 is a deficient number, since it is larger than the sum of its proper divisors (14038340266).

28044417554 is a wasteful number, since it uses less digits than its factorization.

28044417554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377164.

The product of its (nonzero) digits is 716800, while the sum is 44.

The spelling of 28044417554 in words is "twenty-eight billion, forty-four million, four hundred seventeen thousand, five hundred fifty-four".