4478121854 has 8 divisors (see below), whose sum is σ = 6770074368. Its totient is φ = 2221430400.

The previous prime is 4478121853. The next prime is 4478121859. The reversal of 4478121854 is 4581218744.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478121853) 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, 8814947 + ... + 8815454.

It is an arithmetic number, because the mean of its divisors is an integer number (846259296).

Almost surely, 2^4478121854 is an apocalyptic number.

4478121854 is a deficient number, since it is larger than the sum of its proper divisors (2291952514).

4478121854 is a wasteful number, since it uses less digits than its factorization.

4478121854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17630530.

The product of its digits is 286720, while the sum is 44.

The square root of 4478121854 is about 66918.7705655147. The cubic root of 4478121854 is about 1648.2837194051.

The spelling of 4478121854 in words is "four billion, four hundred seventy-eight million, one hundred twenty-one thousand, eight hundred fifty-four".