2163927974 has 32 divisors (see below), whose sum is σ = 3806460000. Its totient is φ = 913538304.

The previous prime is 2163927973. The next prime is 2163927979. The reversal of 2163927974 is 4797293612.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163927973) 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 15 ways as a sum of consecutive naturals, for example, 61199 + ... + 89850.

It is an arithmetic number, because the mean of its divisors is an integer number (118951875).

Almost surely, 2^2163927974 is an apocalyptic number.

2163927974 is a deficient number, since it is larger than the sum of its proper divisors (1642532026).

2163927974 is a wasteful number, since it uses less digits than its factorization.

2163927974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151112.

The product of its digits is 1143072, while the sum is 50.

The square root of 2163927974 is about 46518.0392321087. The cubic root of 2163927974 is about 1293.4439102118.

The spelling of 2163927974 in words is "two billion, one hundred sixty-three million, nine hundred twenty-seven thousand, nine hundred seventy-four".