2178132792 has 64 divisors (see below), whose sum is σ = 6253027200. Its totient is φ = 625299840.

The previous prime is 2178132791. The next prime is 2178132829. The reversal of 2178132792 is 2972318712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2178132791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212103 + ... + 222134.

It is an arithmetic number, because the mean of its divisors is an integer number (97703550).

Almost surely, 2^2178132792 is an apocalyptic number.

2178132792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2178132792 is an abundant number, since it is smaller than the sum of its proper divisors (4074894408).

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

2178132792 is a wasteful number, since it uses less digits than its factorization.

2178132792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434276 (or 434272 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 2178132792 is about 46670.4702354712. The cubic root of 2178132792 is about 1296.2679534739.

The spelling of 2178132792 in words is "two billion, one hundred seventy-eight million, one hundred thirty-two thousand, seven hundred ninety-two".