11761280320445 has 8 divisors (see below), whose sum is σ = 14119565247960. Its totient is φ = 9405005014080.

The previous prime is 11761280320421. The next prime is 11761280320463. The reversal of 11761280320445 is 54402308216711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4986655218724 + 6774625101721 = 2233082^2 + 2602811^2 .

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

It is not a de Polignac number, because 11761280320445 - 2⁶ = 11761280320381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11761280320396 and 11761280320405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502392410 + ... + 502415819.

It is an arithmetic number, because the mean of its divisors is an integer number (1764945655995).

Almost surely, 2^{11761280320445} is an apocalyptic number.

It is an amenable number.

11761280320445 is a deficient number, since it is larger than the sum of its proper divisors (2358284927515).

11761280320445 is a wasteful number, since it uses less digits than its factorization.

11761280320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004810575.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 11761280320445 in words is "eleven trillion, seven hundred sixty-one billion, two hundred eighty million, three hundred twenty thousand, four hundred forty-five".