1261546376825 has 96 divisors (see below), whose sum is σ = 1873313433600. Its totient is φ = 841910630400.

The previous prime is 1261546376767. The next prime is 1261546376861. The reversal of 1261546376825 is 5286736451621.

It is not a de Polignac number, because 1261546376825 - 2⁸ = 1261546376569 is a prime.

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 95 ways as a sum of consecutive naturals, for example, 152227832 + ... + 152236118.

It is an arithmetic number, because the mean of its divisors is an integer number (19513681600).

Almost surely, 2^{1261546376825} is an apocalyptic number.

It is an amenable number.

1261546376825 is a deficient number, since it is larger than the sum of its proper divisors (611767056775).

1261546376825 is an equidigital number, since it uses as much as digits as its factorization.

1261546376825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8792 (or 8773 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 56.

The spelling of 1261546376825 in words is "one trillion, two hundred sixty-one billion, five hundred forty-six million, three hundred seventy-six thousand, eight hundred twenty-five".