213491969132 has 24 divisors (see below), whose sum is σ = 423526580400. Its totient is φ = 93348714816.

The previous prime is 213491969111. The next prime is 213491969143. The reversal of 213491969132 is 231969194312.

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, 108041507 + ... + 108043482.

It is an arithmetic number, because the mean of its divisors is an integer number (17646940850).

Almost surely, 2^213491969132 is an apocalyptic number.

It is an amenable number.

213491969132 is a deficient number, since it is larger than the sum of its proper divisors (210034611268).

213491969132 is a wasteful number, since it uses less digits than its factorization.

213491969132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216085025 (or 216085023 counting only the distinct ones).

The product of its digits is 629856, while the sum is 50.

The spelling of 213491969132 in words is "two hundred thirteen billion, four hundred ninety-one million, nine hundred sixty-nine thousand, one hundred thirty-two".