216791907932 has 6 divisors (see below), whose sum is σ = 379385838888. Its totient is φ = 108395953964.

The previous prime is 216791907901. The next prime is 216791907947. The reversal of 216791907932 is 239709197612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27098988488 + ... + 27098988495.

It is an arithmetic number, because the mean of its divisors is an integer number (63230973148).

Almost surely, 2^216791907932 is an apocalyptic number.

It is an amenable number.

216791907932 is a deficient number, since it is larger than the sum of its proper divisors (162593930956).

216791907932 is a wasteful number, since it uses less digits than its factorization.

216791907932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54197976987 (or 54197976985 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 56.

The spelling of 216791907932 in words is "two hundred sixteen billion, seven hundred ninety-one million, nine hundred seven thousand, nine hundred thirty-two".