2163671497 has 8 divisors (see below), whose sum is σ = 2330850816. Its totient is φ = 1996598352.

The previous prime is 2163671449. The next prime is 2163671501. The reversal of 2163671497 is 7941763612.

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

It is a cyclic number.

It is not a de Polignac number, because 2163671497 - 2⁷ = 2163671369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163671407) 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 7 ways as a sum of consecutive naturals, for example, 18648 + ... + 68374.

It is an arithmetic number, because the mean of its divisors is an integer number (291356352).

Almost surely, 2^2163671497 is an apocalyptic number.

It is an amenable number.

2163671497 is a deficient number, since it is larger than the sum of its proper divisors (167179319).

2163671497 is a wasteful number, since it uses less digits than its factorization.

2163671497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53087.

The product of its digits is 381024, while the sum is 46.

The square root of 2163671497 is about 46515.2824026685. The cubic root of 2163671497 is about 1293.3928068903.

The spelling of 2163671497 in words is "two billion, one hundred sixty-three million, six hundred seventy-one thousand, four hundred ninety-seven".