4002172816 has 10 divisors (see below), whose sum is σ = 7754209862. Its totient is φ = 2001086400.

The previous prime is 4002172807. The next prime is 4002172829. The reversal of 4002172816 is 6182712004.

4002172816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2746179216 + 1255993600 = 52404^2 + 35440^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125067885 + ... + 125067916.

Almost surely, 2^4002172816 is an apocalyptic number.

It is an amenable number.

4002172816 is a deficient number, since it is larger than the sum of its proper divisors (3752037046).

4002172816 is a wasteful number, since it uses less digits than its factorization.

4002172816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250135809 (or 250135803 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 4002172816 is about 63262.7284900043. The cubic root of 4002172816 is about 1587.6884274736.

The spelling of 4002172816 in words is "four billion, two million, one hundred seventy-two thousand, eight hundred sixteen".