1325779288 has 16 divisors (see below), whose sum is σ = 2486250000. Its totient is φ = 662779296.

The previous prime is 1325779261. The next prime is 1325779291. The reversal of 1325779288 is 8829775231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61338 + ... + 80086.

It is an arithmetic number, because the mean of its divisors is an integer number (155390625).

Almost surely, 2^1325779288 is an apocalyptic number.

It is an amenable number.

1325779288 is a deficient number, since it is larger than the sum of its proper divisors (1160470712).

1325779288 is a wasteful number, since it uses less digits than its factorization.

1325779288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27594 (or 27590 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 1325779288 is about 36411.2522168629. The cubic root of 1325779288 is about 1098.5599028052.

The spelling of 1325779288 in words is "one billion, three hundred twenty-five million, seven hundred seventy-nine thousand, two hundred eighty-eight".