213018439478 has 16 divisors (see below), whose sum is σ = 344470114800. Its totient is φ = 98212372896.

The previous prime is 213018439457. The next prime is 213018439493. The reversal of 213018439478 is 874934810312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301153 + ... + 4350396.

It is an arithmetic number, because the mean of its divisors is an integer number (21529382175).

Almost surely, 2^213018439478 is an apocalyptic number.

213018439478 is a deficient number, since it is larger than the sum of its proper divisors (131451675322).

213018439478 is a wasteful number, since it uses less digits than its factorization.

213018439478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8652511.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 213018439478 in words is "two hundred thirteen billion, eighteen million, four hundred thirty-nine thousand, four hundred seventy-eight".