80018910 has 48 divisors (see below), whose sum is σ = 212486976. Its totient is φ = 20883264.

The previous prime is 80018903. The next prime is 80018933. The reversal of 80018910 is 1981008.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5229 + ... + 13688.

It is an arithmetic number, because the mean of its divisors is an integer number (4426812).

Almost surely, 2^80018910 is an apocalyptic number.

80018910 is an abundant number, since it is smaller than the sum of its proper divisors (132468066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80018910 is a wasteful number, since it uses less digits than its factorization.

80018910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18977 (or 18974 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 80018910 is about 8945.3289486748. The cubic root of 80018910 is about 430.9208856317.

Adding to 80018910 its reverse (1981008), we get a palindrome (81999918).

The spelling of 80018910 in words is "eighty million, eighteen thousand, nine hundred ten".