12403747172 has 12 divisors (see below), whose sum is σ = 21738343536. Its totient is φ = 6192791880.

The previous prime is 12403747157. The next prime is 12403747193. The reversal of 12403747172 is 27174730421.

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, 2267354 + ... + 2272817.

It is an arithmetic number, because the mean of its divisors is an integer number (1811528628).

Almost surely, 2^12403747172 is an apocalyptic number.

It is an amenable number.

12403747172 is a deficient number, since it is larger than the sum of its proper divisors (9334596364).

12403747172 is a wasteful number, since it uses less digits than its factorization.

12403747172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540858 (or 4540856 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The spelling of 12403747172 in words is "twelve billion, four hundred three million, seven hundred forty-seven thousand, one hundred seventy-two".