80518967 has 2 divisors, whose sum is σ = 80518968. Its totient is φ = 80518966.

The previous prime is 80518931. The next prime is 80518969. The reversal of 80518967 is 76981508.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80518967 - 2¹² = 80514871 is a prime.

Together with 80518969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80518969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40259483 + 40259484.

It is an arithmetic number, because the mean of its divisors is an integer number (40259484).

Almost surely, 2^80518967 is an apocalyptic number.

80518967 is a deficient number, since it is larger than the sum of its proper divisors (1).

80518967 is an equidigital number, since it uses as much as digits as its factorization.

80518967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 80518967 is about 8973.2361497957. The cubic root of 80518967 is about 431.8166642465.

The spelling of 80518967 in words is "eighty million, five hundred eighteen thousand, nine hundred sixty-seven".