2163481497 has 12 divisors (see below), whose sum is σ = 3135212080. Its totient is φ = 1437621048.

The previous prime is 2163481451. The next prime is 2163481543. The reversal of 2163481497 is 7941843612.

2163481497 is a `hidden beast` number, since 2 + 1 + 634 + 8 + 1 + 4 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (2163481451) and next prime (2163481543).

It is not a de Polignac number, because 2163481497 - 2⁶ = 2163481433 is a prime.

It is a super-2 number, since 2×2163481497² = 9361304375722722018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163481447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388747 + ... + 394272.

Almost surely, 2^2163481497 is an apocalyptic number.

It is an amenable number.

2163481497 is a deficient number, since it is larger than the sum of its proper divisors (971730583).

2163481497 is a wasteful number, since it uses less digits than its factorization.

2163481497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783332 (or 783329 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2163481497 is about 46513.2400183002. The cubic root of 2163481497 is about 1293.3549465794.

The spelling of 2163481497 in words is "two billion, one hundred sixty-three million, four hundred eighty-one thousand, four hundred ninety-seven".