2173806495 has 24 divisors (see below), whose sum is σ = 4306207776. Its totient is φ = 993739968.

The previous prime is 2173806493. The next prime is 2173806517. The reversal of 2173806495 is 5946083712.

2173806495 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2173806495 - 2¹ = 2173806493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

2173806495 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2173806495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173806493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3450172 + ... + 3450801.

It is an arithmetic number, because the mean of its divisors is an integer number (179425324).

It is a 1-persistent number, because it is pandigital, but 2⋅2173806495 = 4347612990 is not.

Almost surely, 2^2173806495 is an apocalyptic number.

2173806495 is a deficient number, since it is larger than the sum of its proper divisors (2132401281).

2173806495 is a wasteful number, since it uses less digits than its factorization.

2173806495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900991 (or 6900988 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2173806495 is about 46624.0977928796. The cubic root of 2173806495 is about 1295.4091510392.

The spelling of 2173806495 in words is "two billion, one hundred seventy-three million, eight hundred six thousand, four hundred ninety-five".