109212681832 has 16 divisors (see below), whose sum is σ = 204778003140. Its totient is φ = 54605214336.

The previous prime is 109212681803. The next prime is 109212681841. The reversal of 109212681832 is 238186212901.

It can be written as a sum of positive squares in 2 ways, for example, as 106219935396 + 2992746436 = 325914^2 + 54706^2 .

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, 387988 + ... + 607420.

Almost surely, 2^109212681832 is an apocalyptic number.

It is an amenable number.

109212681832 is a deficient number, since it is larger than the sum of its proper divisors (95565321308).

109212681832 is a wasteful number, since it uses less digits than its factorization.

109212681832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281652 (or 281648 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 109212681832 in words is "one hundred nine billion, two hundred twelve million, six hundred eighty-one thousand, eight hundred thirty-two".