80780080 has 40 divisors (see below), whose sum is σ = 194295600. Its totient is φ = 31196928.

The previous prime is 80780069. The next prime is 80780093. The reversal of 80780080 is 8008708.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15090 + ... + 19729.

It is an arithmetic number, because the mean of its divisors is an integer number (4857390).

Almost surely, 2^80780080 is an apocalyptic number.

80780080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80780080 is an abundant number, since it is smaller than the sum of its proper divisors (113515520).

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

80780080 is a wasteful number, since it uses less digits than its factorization.

80780080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34861 (or 34855 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 80780080 is about 8987.7739179399. The cubic root of 80780080 is about 432.2829365079.

Adding to 80780080 its reverse (8008708), we get a palindrome (88788788).

The spelling of 80780080 in words is "eighty million, seven hundred eighty thousand, eighty".