80518641 has 8 divisors (see below), whose sum is σ = 122695104. Its totient is φ = 46010640.

The previous prime is 80518639. The next prime is 80518649. The reversal of 80518641 is 14681508.

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

It is not a de Polignac number, because 80518641 - 2¹ = 80518639 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (80518649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1917090 + ... + 1917131.

It is an arithmetic number, because the mean of its divisors is an integer number (15336888).

Almost surely, 2^80518641 is an apocalyptic number.

It is an amenable number.

80518641 is a deficient number, since it is larger than the sum of its proper divisors (42176463).

80518641 is a wasteful number, since it uses less digits than its factorization.

80518641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834231.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 80518641 is about 8973.2179846474. The cubic root of 80518641 is about 431.8160814752.

The spelling of 80518641 in words is "eighty million, five hundred eighteen thousand, six hundred forty-one".