2178680076 has 36 divisors (see below), whose sum is σ = 5509495992. Its totient is φ = 725926464.

The previous prime is 2178680041. The next prime is 2178680111. The reversal of 2178680076 is 6700868712.

It is an interprime number because it is at equal distance from previous prime (2178680041) and next prime (2178680111).

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86515 + ... + 108821.

Almost surely, 2^2178680076 is an apocalyptic number.

It is an amenable number.

2178680076 is an abundant number, since it is smaller than the sum of its proper divisors (3330815916).

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

2178680076 is a wasteful number, since it uses less digits than its factorization.

2178680076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030 (or 25025 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 2178680076 is about 46676.3331464673. Note that the first 3 decimals coincide. The cubic root of 2178680076 is about 1296.3765124047.

The spelling of 2178680076 in words is "two billion, one hundred seventy-eight million, six hundred eighty thousand, seventy-six".