1313563454194 has 8 divisors (see below), whose sum is σ = 2086247839068. Its totient is φ = 618147507840.

The previous prime is 1313563454183. The next prime is 1313563454197. The reversal of 1313563454194 is 4914543653131.

It can be written as a sum of positive squares in 2 ways, for example, as 1313419142025 + 144312169 = 1146045^2 + 12013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1313563454197) 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, 19317109587 + ... + 19317109654.

Almost surely, 2^{1313563454194} is an apocalyptic number.

1313563454194 is a deficient number, since it is larger than the sum of its proper divisors (772684384874).

1313563454194 is a wasteful number, since it uses less digits than its factorization.

1313563454194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38634219260.

The product of its digits is 2332800, while the sum is 49.

The spelling of 1313563454194 in words is "one trillion, three hundred thirteen billion, five hundred sixty-three million, four hundred fifty-four thousand, one hundred ninety-four".