12173444402 has 16 divisors (see below), whose sum is σ = 20879259840. Its totient is φ = 5214565968.

The previous prime is 12173444383. The next prime is 12173444441. The reversal of 12173444402 is 20444437121.

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, 189752 + ... + 245667.

It is an arithmetic number, because the mean of its divisors is an integer number (1304953740).

Almost surely, 2^12173444402 is an apocalyptic number.

12173444402 is a deficient number, since it is larger than the sum of its proper divisors (8705815438).

12173444402 is a wasteful number, since it uses less digits than its factorization.

12173444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437425.

The product of its (nonzero) digits is 21504, while the sum is 32.

The spelling of 12173444402 in words is "twelve billion, one hundred seventy-three million, four hundred forty-four thousand, four hundred two".