81014680 has 16 divisors (see below), whose sum is σ = 182283120. Its totient is φ = 32405856.

The previous prime is 81014663. The next prime is 81014767. The reversal of 81014680 is 8641018.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012644 + ... + 1012723.

It is an arithmetic number, because the mean of its divisors is an integer number (11392695).

Almost surely, 2^81014680 is an apocalyptic number.

It is an amenable number.

81014680 is an abundant number, since it is smaller than the sum of its proper divisors (101268440).

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

81014680 is a wasteful number, since it uses less digits than its factorization.

81014680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025378 (or 2025374 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 81014680 is about 9000.8155186072. The cubic root of 81014680 is about 432.7010080611.

Adding to 81014680 its reverse (8641018), we get a palindrome (89655698).

The spelling of 81014680 in words is "eighty-one million, fourteen thousand, six hundred eighty".