4012305507172 has 6 divisors (see below), whose sum is σ = 7021534637558. Its totient is φ = 2006152753584.

The previous prime is 4012305507169. The next prime is 4012305507173. The reversal of 4012305507172 is 2717055032104.

It can be written as a sum of positive squares in only one way, i.e., 3201902256996 + 810403250176 = 1789386^2 + 900224^2 .

It is not an unprimeable number, because it can be changed into a prime (4012305507173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501538188393 + ... + 501538188400.

Almost surely, 2^{4012305507172} is an apocalyptic number.

It is an amenable number.

4012305507172 is a deficient number, since it is larger than the sum of its proper divisors (3009229130386).

4012305507172 is a wasteful number, since it uses less digits than its factorization.

4012305507172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003076376797 (or 1003076376795 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 4012305507172 in words is "four trillion, twelve billion, three hundred five million, five hundred seven thousand, one hundred seventy-two".