1481808863 has 4 divisors (see below), whose sum is σ = 1485154248. Its totient is φ = 1478463480.

The previous prime is 1481808817. The next prime is 1481808907. The reversal of 1481808863 is 3688081841.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1481808863 - 2¹⁴ = 1481792479 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 (1481802863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672028 + ... + 1672913.

It is an arithmetic number, because the mean of its divisors is an integer number (371288562).

Almost surely, 2^1481808863 is an apocalyptic number.

1481808863 is a deficient number, since it is larger than the sum of its proper divisors (3345385).

1481808863 is an equidigital number, since it uses as much as digits as its factorization.

1481808863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345384.

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 1481808863 is about 38494.2705217283. The cubic root of 1481808863 is about 1140.0679304447.

The spelling of 1481808863 in words is "one billion, four hundred eighty-one million, eight hundred eight thousand, eight hundred sixty-three".