80501813 has 8 divisors (see below), whose sum is σ = 92896128. Its totient is φ = 68331024.

The previous prime is 80501809. The next prime is 80501831. The reversal of 80501813 is 31810508.

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

It is not a de Polignac number, because 80501813 - 2² = 80501809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80501843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55106 + ... + 56547.

It is an arithmetic number, because the mean of its divisors is an integer number (11612016).

Almost surely, 2^80501813 is an apocalyptic number.

It is an amenable number.

80501813 is a deficient number, since it is larger than the sum of its proper divisors (12394315).

80501813 is a wasteful number, since it uses less digits than its factorization.

80501813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111763.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 80501813 is about 8972.2802564343. The cubic root of 80501813 is about 431.7859969001.

The spelling of 80501813 in words is "eighty million, five hundred one thousand, eight hundred thirteen".