87322874077673 has 4 divisors (see below), whose sum is σ = 94040018237508. Its totient is φ = 80605729917840.

The previous prime is 87322874077631. The next prime is 87322874077709. The reversal of 87322874077673 is 37677047822378.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11122405090729 + 76200468986944 = 3335027^2 + 8729288^2 .

It is a cyclic number.

It is not a de Polignac number, because 87322874077673 - 2⁶ = 87322874077609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87322874077597 and 87322874077606.

It is not an unprimeable number, because it can be changed into a prime (87322874077603) 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, 3358572079898 + ... + 3358572079923.

It is an arithmetic number, because the mean of its divisors is an integer number (23510004559377).

Almost surely, 2^{87322874077673} is an apocalyptic number.

It is an amenable number.

87322874077673 is a deficient number, since it is larger than the sum of its proper divisors (6717144159835).

87322874077673 is a wasteful number, since it uses less digits than its factorization.

87322874077673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717144159834.

The product of its (nonzero) digits is 929359872, while the sum is 71.

The spelling of 87322874077673 in words is "eighty-seven trillion, three hundred twenty-two billion, eight hundred seventy-four million, seventy-seven thousand, six hundred seventy-three".