1305107873756 has 12 divisors (see below), whose sum is σ = 2307484540368. Its totient is φ = 645826576512.

The previous prime is 1305107873753. The next prime is 1305107873761. The reversal of 1305107873756 is 6573787015031.

It is a junction number, because it is equal to n+sod(n) for n = 1305107873698 and 1305107873707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305107873753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1681839656 + ... + 1681840431.

It is an arithmetic number, because the mean of its divisors is an integer number (192290378364).

Almost surely, 2^{1305107873756} is an apocalyptic number.

It is an amenable number.

1305107873756 is a deficient number, since it is larger than the sum of its proper divisors (1002376666612).

1305107873756 is a wasteful number, since it uses less digits than its factorization.

1305107873756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363680188 (or 3363680186 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 1305107873756 in words is "one trillion, three hundred five billion, one hundred seven million, eight hundred seventy-three thousand, seven hundred fifty-six".