1284548863 has 16 divisors (see below), whose sum is σ = 1411966080. Its totient is φ = 1161298944.

The previous prime is 1284548861. The next prime is 1284548879. The reversal of 1284548863 is 3688454821.

It is not a de Polignac number, because 1284548863 - 2¹ = 1284548861 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 (1284548861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494095 + ... + 496687.

It is an arithmetic number, because the mean of its divisors is an integer number (88247880).

Almost surely, 2^1284548863 is an apocalyptic number.

1284548863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1284548863 is a deficient number, since it is larger than the sum of its proper divisors (127417217).

1284548863 is a wasteful number, since it uses less digits than its factorization.

1284548863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378.

The product of its digits is 1474560, while the sum is 49.

The square root of 1284548863 is about 35840.6035523957. The cubic root of 1284548863 is about 1087.0517253683.

The spelling of 1284548863 in words is "one billion, two hundred eighty-four million, five hundred forty-eight thousand, eight hundred sixty-three".