2031916005 has 24 divisors (see below), whose sum is σ = 4025129472. Its totient is φ = 928875744.

The previous prime is 2031915971. The next prime is 2031916021. The reversal of 2031916005 is 5006191302.

2031916005 is a `hidden beast` number, since 20 + 31 + 9 + 1 + 600 + 5 = 666.

It is not a de Polignac number, because 2031916005 - 2¹⁰ = 2031914981 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031916005.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3224949 + ... + 3225578.

It is an arithmetic number, because the mean of its divisors is an integer number (167713728).

Almost surely, 2^2031916005 is an apocalyptic number.

It is an amenable number.

2031916005 is a deficient number, since it is larger than the sum of its proper divisors (1993213467).

2031916005 is a wasteful number, since it uses less digits than its factorization.

2031916005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450545 (or 6450542 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2031916005 is about 45076.7789998354. The cubic root of 2031916005 is about 1266.5876538510.

The spelling of 2031916005 in words is "two billion, thirty-one million, nine hundred sixteen thousand, five".