2168571078 has 48 divisors (see below), whose sum is σ = 4786329600. Its totient is φ = 709398000.

The previous prime is 2168571043. The next prime is 2168571079. The reversal of 2168571078 is 8701758612.

It is a happy number.

2168571078 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 571 + 0 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168571079) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 796203 + ... + 798921.

It is an arithmetic number, because the mean of its divisors is an integer number (99715200).

Almost surely, 2^2168571078 is an apocalyptic number.

2168571078 is an abundant number, since it is smaller than the sum of its proper divisors (2617758522).

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

2168571078 is a wasteful number, since it uses less digits than its factorization.

2168571078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The square root of 2168571078 is about 46567.9189786273. The cubic root of 2168571078 is about 1294.3683563133.

The spelling of 2168571078 in words is "two billion, one hundred sixty-eight million, five hundred seventy-one thousand, seventy-eight".