2561296473746 has 8 divisors (see below), whose sum is σ = 3841971127680. Its totient is φ = 1280639431188.

The previous prime is 2561296473709. The next prime is 2561296473761. The reversal of 2561296473746 is 6473746921652.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 4033046 + ... + 4624721.

It is an arithmetic number, because the mean of its divisors is an integer number (480246390960).

Almost surely, 2^{2561296473746} is an apocalyptic number.

2561296473746 is a deficient number, since it is larger than the sum of its proper divisors (1280674653934).

2561296473746 is a wasteful number, since it uses less digits than its factorization.

2561296473746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8805688.

The product of its digits is 91445760, while the sum is 62.

The spelling of 2561296473746 in words is "two trillion, five hundred sixty-one billion, two hundred ninety-six million, four hundred seventy-three thousand, seven hundred forty-six".