1260442188805 has 16 divisors (see below), whose sum is σ = 1602136044864. Its totient is φ = 948663696640.

The previous prime is 1260442188791. The next prime is 1260442188821. The reversal of 1260442188805 is 5088812440621.

It is not a de Polignac number, because 1260442188805 - 2²⁹ = 1259905317893 is a prime.

It is a super-2 number, since 2×1260442188805² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2714287 + ... + 3144556.

It is an arithmetic number, because the mean of its divisors is an integer number (100133502804).

Almost surely, 2^{1260442188805} is an apocalyptic number.

It is an amenable number.

1260442188805 is a deficient number, since it is larger than the sum of its proper divisors (341693856059).

1260442188805 is a wasteful number, since it uses less digits than its factorization.

1260442188805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861396.

The product of its (nonzero) digits is 983040, while the sum is 49.

The spelling of 1260442188805 in words is "one trillion, two hundred sixty billion, four hundred forty-two million, one hundred eighty-eight thousand, eight hundred five".