1316761874005 has 4 divisors (see below), whose sum is σ = 1580114248812. Its totient is φ = 1053409499200.

The previous prime is 1316761873997. The next prime is 1316761874053. The reversal of 1316761874005 is 5004781676131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 885996743076 + 430765130929 = 941274^2 + 656327^2 .

It is not a de Polignac number, because 1316761874005 - 2³ = 1316761873997 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316761874005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131676187396 + ... + 131676187405.

It is an arithmetic number, because the mean of its divisors is an integer number (395028562203).

Almost surely, 2^{1316761874005} is an apocalyptic number.

It is an amenable number.

1316761874005 is a deficient number, since it is larger than the sum of its proper divisors (263352374807).

1316761874005 is an equidigital number, since it uses as much as digits as its factorization.

1316761874005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263352374806.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 1316761874005 in words is "one trillion, three hundred sixteen billion, seven hundred sixty-one million, eight hundred seventy-four thousand, five".