80718011 has 6 divisors (see below), whose sum is σ = 88723236. Its totient is φ = 73379900.

The previous prime is 80718007. The next prime is 80718041. The reversal of 80718011 is 11081708.

It is not a de Polignac number, because 80718011 - 2² = 80718007 is a prime.

It is a super-2 number, since 2×80718011² = 13030794599592242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80718041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333425 + ... + 333666.

It is an arithmetic number, because the mean of its divisors is an integer number (14787206).

Almost surely, 2^80718011 is an apocalyptic number.

80718011 is a deficient number, since it is larger than the sum of its proper divisors (8005225).

80718011 is a wasteful number, since it uses less digits than its factorization.

80718011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667113 (or 667102 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 80718011 is about 8984.3202859204. The cubic root of 80718011 is about 432.1721903741.

Adding to 80718011 its reverse (11081708), we get a palindrome (91799719).

The spelling of 80718011 in words is "eighty million, seven hundred eighteen thousand, eleven".