397853441218 has 8 divisors (see below), whose sum is σ = 596787148800. Its totient is φ = 198924391620.

The previous prime is 397853441203. The next prime is 397853441281. The reversal of 397853441218 is 812144358793.

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

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, 942498 + ... + 1297693.

It is an arithmetic number, because the mean of its divisors is an integer number (74598393600).

Almost surely, 2^397853441218 is an apocalyptic number.

397853441218 is a deficient number, since it is larger than the sum of its proper divisors (198933707582).

397853441218 is a wasteful number, since it uses less digits than its factorization.

397853441218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328992.

The product of its digits is 5806080, while the sum is 55.

The spelling of 397853441218 in words is "three hundred ninety-seven billion, eight hundred fifty-three million, four hundred forty-one thousand, two hundred eighteen".