80807186745 has 24 divisors (see below), whose sum is σ = 140875432776. Its totient is φ = 42848045568.

The previous prime is 80807186717. The next prime is 80807186767. The reversal of 80807186745 is 54768170808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6446805264 + 74360381481 = 80292^2 + 272691^2 .

It is not a de Polignac number, because 80807186745 - 2¹² = 80807182649 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80807186691 and 80807186700.

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 23 ways as a sum of consecutive naturals, for example, 5182144 + ... + 5197713.

It is an arithmetic number, because the mean of its divisors is an integer number (5869809699).

Almost surely, 2^80807186745 is an apocalyptic number.

It is an amenable number.

80807186745 is a deficient number, since it is larger than the sum of its proper divisors (60068246031).

80807186745 is a wasteful number, since it uses less digits than its factorization.

80807186745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10380041 (or 10380038 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 80807186745 in words is "eighty billion, eight hundred seven million, one hundred eighty-six thousand, seven hundred forty-five".