1261760054126 has 16 divisors (see below), whose sum is σ = 2223521214768. Its totient is φ = 529409812800.

The previous prime is 1261760054123. The next prime is 1261760054141. The reversal of 1261760054126 is 6214500671621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261760054123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2205873935 + ... + 2205874506.

It is an arithmetic number, because the mean of its divisors is an integer number (138970075923).

Almost surely, 2^{1261760054126} is an apocalyptic number.

1261760054126 is a deficient number, since it is larger than the sum of its proper divisors (961761160642).

1261760054126 is a wasteful number, since it uses less digits than its factorization.

1261760054126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411748467.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 1261760054126 in words is "one trillion, two hundred sixty-one billion, seven hundred sixty million, fifty-four thousand, one hundred twenty-six".