2169995493 has 16 divisors (see below), whose sum is σ = 2905478720. Its totient is φ = 1440602496.

The previous prime is 2169995459. The next prime is 2169995519. The reversal of 2169995493 is 3945999612.

It is not a de Polignac number, because 2169995493 - 2¹³ = 2169987301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169995393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847371 + ... + 849927.

It is an arithmetic number, because the mean of its divisors is an integer number (181592420).

Almost surely, 2^2169995493 is an apocalyptic number.

It is an amenable number.

2169995493 is a deficient number, since it is larger than the sum of its proper divisors (735483227).

2169995493 is a wasteful number, since it uses less digits than its factorization.

2169995493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636.

The product of its digits is 4723920, while the sum is 57.

The square root of 2169995493 is about 46583.2104196351. The cubic root of 2169995493 is about 1294.6516940665.

The spelling of 2169995493 in words is "two billion, one hundred sixty-nine million, nine hundred ninety-five thousand, four hundred ninety-three".