1318266853850 has 48 divisors (see below), whose sum is σ = 2596512546936. Its totient is φ = 496230912000.

The previous prime is 1318266853843. The next prime is 1318266853853. The reversal of 1318266853850 is 583586628131.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 415430522521 + 902836331329 = 644539^2 + 950177^2 .

It is not an unprimeable number, because it can be changed into a prime (1318266853853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7599080 + ... + 7770620.

Almost surely, 2^{1318266853850} is an apocalyptic number.

1318266853850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1318266853850 is a deficient number, since it is larger than the sum of its proper divisors (1278245693086).

1318266853850 is a wasteful number, since it uses less digits than its factorization.

1318266853850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180611 (or 180606 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 1318266853850 in words is "one trillion, three hundred eighteen billion, two hundred sixty-six million, eight hundred fifty-three thousand, eight hundred fifty".