194334532172 has 24 divisors (see below), whose sum is σ = 371100163392. Its totient is φ = 88310574800.

The previous prime is 194334532159. The next prime is 194334532283. The reversal of 194334532172 is 271235433491.

194334532172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 413354 + ... + 748017.

It is an arithmetic number, because the mean of its divisors is an integer number (15462506808).

Almost surely, 2^194334532172 is an apocalyptic number.

It is an amenable number.

194334532172 is a deficient number, since it is larger than the sum of its proper divisors (176765631220).

194334532172 is a wasteful number, since it uses less digits than its factorization.

194334532172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165189 (or 1165187 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The spelling of 194334532172 in words is "one hundred ninety-four billion, three hundred thirty-four million, five hundred thirty-two thousand, one hundred seventy-two".