4385121478 has 8 divisors (see below), whose sum is σ = 6579867168. Its totient is φ = 2191832424.

The previous prime is 4385121469. The next prime is 4385121497. The reversal of 4385121478 is 8741215834.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356601 + ... + 368692.

It is an arithmetic number, because the mean of its divisors is an integer number (822483396).

Almost surely, 2^4385121478 is an apocalyptic number.

4385121478 is a deficient number, since it is larger than the sum of its proper divisors (2194745690).

4385121478 is a wasteful number, since it uses less digits than its factorization.

4385121478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728318.

The product of its digits is 215040, while the sum is 43.

The square root of 4385121478 is about 66220.2497579102. The cubic root of 4385121478 is about 1636.7934418321.

The spelling of 4385121478 in words is "four billion, three hundred eighty-five million, one hundred twenty-one thousand, four hundred seventy-eight".