1311798873844 has 96 divisors (see below), whose sum is σ = 2430628300800. Its totient is φ = 618785955840.

The previous prime is 1311798873817. The next prime is 1311798873887. The reversal of 1311798873844 is 4483788971131.

It is a super-3 number, since 3×1311798873844³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493712964 + ... + 493715620.

It is an arithmetic number, because the mean of its divisors is an integer number (25319044800).

Almost surely, 2^{1311798873844} is an apocalyptic number.

It is an amenable number.

1311798873844 is a deficient number, since it is larger than the sum of its proper divisors (1118829426956).

1311798873844 is a wasteful number, since it uses less digits than its factorization.

1311798873844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553 (or 3551 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 64.

The spelling of 1311798873844 in words is "one trillion, three hundred eleven billion, seven hundred ninety-eight million, eight hundred seventy-three thousand, eight hundred forty-four".