1318005025936 has 45 divisors (see below), whose sum is σ = 2712845337241. Its totient is φ = 620200921856.

The previous prime is 1318005025933. The next prime is 1318005025957. The reversal of 1318005025936 is 6395205008131.

The square root of 1318005025936 is 1148044.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1026128480400 + 291876545536 = 1012980^2 + 540256^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1318005025892 and 1318005025901.

It is not an unprimeable number, because it can be changed into a prime (1318005025933) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 78058551 + ... + 78075433.

Almost surely, 2^{1318005025936} is an apocalyptic number.

1318005025936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1318005025936 is the 1148044-th square number.

It is an amenable number.

1318005025936 is an abundant number, since it is smaller than the sum of its proper divisors (1394840311305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1318005025936 is an frugal number, since it uses more digits than its factorization.

1318005025936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33808 (or 16902 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1318005025936 in words is "one trillion, three hundred eighteen billion, five million, twenty-five thousand, nine hundred thirty-six".