1260340775061 has 4 divisors (see below), whose sum is σ = 1680454366752. Its totient is φ = 840227183372.

The previous prime is 1260340775039. The next prime is 1260340775081. The reversal of 1260340775061 is 1605770430621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1260340775061 - 2⁶ = 1260340774997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260340775081) 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, 210056795841 + ... + 210056795846.

It is an arithmetic number, because the mean of its divisors is an integer number (420113591688).

Almost surely, 2^{1260340775061} is an apocalyptic number.

It is an amenable number.

1260340775061 is a deficient number, since it is larger than the sum of its proper divisors (420113591691).

1260340775061 is an equidigital number, since it uses as much as digits as its factorization.

1260340775061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420113591690.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 1260340775061 in words is "one trillion, two hundred sixty billion, three hundred forty million, seven hundred seventy-five thousand, sixty-one".