1284468651 has 8 divisors (see below), whose sum is σ = 1902916560. Its totient is φ = 856312416.

The previous prime is 1284468641. The next prime is 1284468671. The reversal of 1284468651 is 1568644821.

It is a happy number.

1284468651 is a `hidden beast` number, since 128 + 4 + 468 + 65 + 1 = 666.

It is not a de Polignac number, because 1284468651 - 2⁹ = 1284468139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1284468597 and 1284468606.

It is not an unprimeable number, because it can be changed into a prime (1284468641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23786430 + ... + 23786483.

It is an arithmetic number, because the mean of its divisors is an integer number (237864570).

Almost surely, 2^1284468651 is an apocalyptic number.

1284468651 is a deficient number, since it is larger than the sum of its proper divisors (618447909).

1284468651 is an equidigital number, since it uses as much as digits as its factorization.

1284468651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47572922 (or 47572916 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1284468651 is about 35839.4845247529. The cubic root of 1284468651 is about 1087.0290983821.

The spelling of 1284468651 in words is "one billion, two hundred eighty-four million, four hundred sixty-eight thousand, six hundred fifty-one".