216374473612 has 12 divisors (see below), whose sum is σ = 413078540616. Its totient is φ = 98352033440.

The previous prime is 216374473589. The next prime is 216374473633.

It is a happy number.

216374473612 is nontrivially palindromic in base 10.

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, 2458800793 + ... + 2458800880.

It is an arithmetic number, because the mean of its divisors is an integer number (34423211718).

Almost surely, 2^216374473612 is an apocalyptic number.

216374473612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216374473612 is a deficient number, since it is larger than the sum of its proper divisors (196704067004).

216374473612 is a wasteful number, since it uses less digits than its factorization.

216374473612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917601688 (or 4917601686 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 46.

It can be divided in two parts, 216374 and 473612, that added together give a palindrome (689986).

The spelling of 216374473612 in words is "two hundred sixteen billion, three hundred seventy-four million, four hundred seventy-three thousand, six hundred twelve".