1361263465042 has 8 divisors (see below), whose sum is σ = 2198964058956. Its totient is φ = 628275445392.

The previous prime is 1361263465039. The next prime is 1361263465097. The reversal of 1361263465042 is 2405643621631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 999342108241 + 361921356801 = 999671^2 + 601599^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1361263465042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26178143533 + ... + 26178143584.

Almost surely, 2^{1361263465042} is an apocalyptic number.

1361263465042 is a deficient number, since it is larger than the sum of its proper divisors (837700593914).

1361263465042 is a wasteful number, since it uses less digits than its factorization.

1361263465042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52356287132.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 1361263465042 in words is "one trillion, three hundred sixty-one billion, two hundred sixty-three million, four hundred sixty-five thousand, forty-two".