2140771678 has 8 divisors (see below), whose sum is σ = 3297945672. Its totient is φ = 1041456456.

The previous prime is 2140771669. The next prime is 2140771693. The reversal of 2140771678 is 8761770412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14464600 + ... + 14464747.

It is an arithmetic number, because the mean of its divisors is an integer number (412243209).

Almost surely, 2^2140771678 is an apocalyptic number.

2140771678 is a deficient number, since it is larger than the sum of its proper divisors (1157173994).

2140771678 is a wasteful number, since it uses less digits than its factorization.

2140771678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28929386.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 2140771678 is about 46268.4739104285. The cubic root of 2140771678 is about 1288.8136195040.

The spelling of 2140771678 in words is "two billion, one hundred forty million, seven hundred seventy-one thousand, six hundred seventy-eight".