2179318072 has 8 divisors (see below), whose sum is σ = 4086221400. Its totient is φ = 1089659032.

The previous prime is 2179318067. The next prime is 2179318079. The reversal of 2179318072 is 2708139712.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179318079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136207372 + ... + 136207387.

It is an arithmetic number, because the mean of its divisors is an integer number (510777675).

Almost surely, 2^2179318072 is an apocalyptic number.

It is an amenable number.

2179318072 is a deficient number, since it is larger than the sum of its proper divisors (1906903328).

2179318072 is a wasteful number, since it uses less digits than its factorization.

2179318072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272414765 (or 272414761 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 2179318072 is about 46683.1669020001. The cubic root of 2179318072 is about 1296.5030419670.

The spelling of 2179318072 in words is "two billion, one hundred seventy-nine million, three hundred eighteen thousand, seventy-two".