1355968587618 has 24 divisors (see below), whose sum is σ = 2937981529548. Its totient is φ = 451981900032.

The previous prime is 1355968587601. The next prime is 1355968587637. The reversal of 1355968587618 is 8167858695531.

1355968587618 is a `hidden beast` number, since 1 + 3 + 559 + 6 + 8 + 5 + 8 + 7 + 61 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1078010822529 + 277957765089 = 1038273^2 + 527217^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516730 + ... + 1725962.

Almost surely, 2^{1355968587618} is an apocalyptic number.

1355968587618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1355968587618 is an abundant number, since it is smaller than the sum of its proper divisors (1582012941930).

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

1355968587618 is a wasteful number, since it uses less digits than its factorization.

1355968587618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271538 (or 1271535 counting only the distinct ones).

The product of its digits is 435456000, while the sum is 72.

The spelling of 1355968587618 in words is "one trillion, three hundred fifty-five billion, nine hundred sixty-eight million, five hundred eighty-seven thousand, six hundred eighteen".