1182561622673 has 4 divisors (see below), whose sum is σ = 1182563865780. Its totient is φ = 1182559379568.

The previous prime is 1182561622667. The next prime is 1182561622679. The reversal of 1182561622673 is 3762261652811.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1182561622667) and next prime (1182561622679).

It can be written as a sum of positive squares in 2 ways, for example, as 370025240209 + 812536382464 = 608297^2 + 901408^2 .

It is a cyclic number.

It is not a de Polignac number, because 1182561622673 - 2¹⁶ = 1182561557137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1182561622679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149111 + ... + 1545107.

It is an arithmetic number, because the mean of its divisors is an integer number (295640966445).

Almost surely, 2^{1182561622673} is an apocalyptic number.

It is an amenable number.

1182561622673 is a deficient number, since it is larger than the sum of its proper divisors (2243107).

1182561622673 is an equidigital number, since it uses as much as digits as its factorization.

1182561622673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243106.

The product of its digits is 1451520, while the sum is 50.

The spelling of 1182561622673 in words is "one trillion, one hundred eighty-two billion, five hundred sixty-one million, six hundred twenty-two thousand, six hundred seventy-three".