1463813813 has 32 divisors (see below), whose sum is σ = 1856977920. Its totient is φ = 1120815360.

The previous prime is 1463813809. The next prime is 1463813833. The reversal of 1463813813 is 3183183641.

It is not a de Polignac number, because 1463813813 - 2² = 1463813809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1463813833) 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 31 ways as a sum of consecutive naturals, for example, 1450253 + ... + 1451261.

It is an arithmetic number, because the mean of its divisors is an integer number (58030560).

Almost surely, 2^1463813813 is an apocalyptic number.

It is an amenable number.

1463813813 is a deficient number, since it is larger than the sum of its proper divisors (393164107).

1463813813 is a wasteful number, since it uses less digits than its factorization.

1463813813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337.

The product of its digits is 41472, while the sum is 38.

The square root of 1463813813 is about 38259.8198244581. The cubic root of 1463813813 is about 1135.4341364184.

The spelling of 1463813813 in words is "one billion, four hundred sixty-three million, eight hundred thirteen thousand, eight hundred thirteen".