1288468647 has 8 divisors (see below), whose sum is σ = 1908842480. Its totient is φ = 858979080.

The previous prime is 1288468633. The next prime is 1288468651. The reversal of 1288468647 is 7468648821.

It is not a de Polignac number, because 1288468647 - 2²⁴ = 1271691431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1288468593 and 1288468602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288460647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23860504 + ... + 23860557.

It is an arithmetic number, because the mean of its divisors is an integer number (238605310).

Almost surely, 2^1288468647 is an apocalyptic number.

1288468647 is a deficient number, since it is larger than the sum of its proper divisors (620373833).

1288468647 is an equidigital number, since it uses as much as digits as its factorization.

1288468647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47721070 (or 47721064 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 1288468647 is about 35895.2454651030. The cubic root of 1288468647 is about 1088.1563106119.

The spelling of 1288468647 in words is "one billion, two hundred eighty-eight million, four hundred sixty-eight thousand, six hundred forty-seven".