80768819 has 16 divisors (see below), whose sum is σ = 88226496. Its totient is φ = 73651200.

The previous prime is 80768797. The next prime is 80768827. The reversal of 80768819 is 91886708.

It is a cyclic number.

It is not a de Polignac number, because 80768819 - 2¹⁶ = 80703283 is a prime.

It is a super-2 number, since 2×80768819² = 13047204245309522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80768119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73079 + ... + 74175.

It is an arithmetic number, because the mean of its divisors is an integer number (5514156).

Almost surely, 2^80768819 is an apocalyptic number.

80768819 is a deficient number, since it is larger than the sum of its proper divisors (7457677).

80768819 is a wasteful number, since it uses less digits than its factorization.

80768819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 80768819 is about 8987.1474339748. The cubic root of 80768819 is about 432.2628483692.

The spelling of 80768819 in words is "eighty million, seven hundred sixty-eight thousand, eight hundred nineteen".