80180749 has 8 divisors (see below), whose sum is σ = 87534720. Its totient is φ = 72837600.

The previous prime is 80180743. The next prime is 80180753. The reversal of 80180749 is 94708108.

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

It is not a de Polignac number, because 80180749 - 2⁵ = 80180717 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 (80180743) 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, 28017 + ... + 30745.

It is an arithmetic number, because the mean of its divisors is an integer number (10941840).

Almost surely, 2^80180749 is an apocalyptic number.

It is an amenable number.

80180749 is a deficient number, since it is larger than the sum of its proper divisors (7353971).

80180749 is a wasteful number, since it uses less digits than its factorization.

80180749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 80180749 is about 8954.3703854598. The cubic root of 80180749 is about 431.2112038473.

The spelling of 80180749 in words is "eighty million, one hundred eighty thousand, seven hundred forty-nine".