7940184972 has 12 divisors (see below), whose sum is σ = 18527098296. Its totient is φ = 2646728320.

The previous prime is 7940184971. The next prime is 7940184977. The reversal of 7940184972 is 2794810497.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (7940184971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330841029 + ... + 330841052.

It is an arithmetic number, because the mean of its divisors is an integer number (1543924858).

Almost surely, 2^7940184972 is an apocalyptic number.

It is an amenable number.

7940184972 is an abundant number, since it is smaller than the sum of its proper divisors (10586913324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7940184972 is a wasteful number, since it uses less digits than its factorization.

7940184972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661682088 (or 661682086 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 7940184972 is about 89107.7155581939. The cubic root of 7940184972 is about 1995.0029394244.

The spelling of 7940184972 in words is "seven billion, nine hundred forty million, one hundred eighty-four thousand, nine hundred seventy-two".