80882637445 has 4 divisors (see below), whose sum is σ = 97059164940. Its totient is φ = 64706109952.

The previous prime is 80882637419. The next prime is 80882637463. The reversal of 80882637445 is 54473628808.

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 48724823169 + 32157814276 = 220737^2 + 179326^2 .

It is a cyclic number.

It is not a de Polignac number, because 80882637445 - 2⁷ = 80882637317 is a prime.

It is a super-2 number, since 2×80882637445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 8088263740 + ... + 8088263749.

It is an arithmetic number, because the mean of its divisors is an integer number (24264791235).

Almost surely, 2^80882637445 is an apocalyptic number.

It is an amenable number.

80882637445 is a deficient number, since it is larger than the sum of its proper divisors (16176527495).

80882637445 is a wasteful number, since it uses less digits than its factorization.

80882637445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16176527494.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 80882637445 in words is "eighty billion, eight hundred eighty-two million, six hundred thirty-seven thousand, four hundred forty-five".