2131663485 has 48 divisors (see below), whose sum is σ = 4113922176. Its totient is φ = 923170176.

The previous prime is 2131663463. The next prime is 2131663489. The reversal of 2131663485 is 5843661312.

It is not a de Polignac number, because 2131663485 - 2⁵ = 2131663453 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131663489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9787 + ... + 66023.

It is an arithmetic number, because the mean of its divisors is an integer number (85706712).

Almost surely, 2^2131663485 is an apocalyptic number.

It is an amenable number.

2131663485 is a deficient number, since it is larger than the sum of its proper divisors (1982258691).

2131663485 is a wasteful number, since it uses less digits than its factorization.

2131663485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56290 (or 56271 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 2131663485 is about 46169.9413579874. The cubic root of 2131663485 is about 1286.9832124589.

The spelling of 2131663485 in words is "two billion, one hundred thirty-one million, six hundred sixty-three thousand, four hundred eighty-five".