80138786 has 24 divisors (see below), whose sum is σ = 148765824. Its totient is φ = 31702320.

The previous prime is 80138777. The next prime is 80138797. The reversal of 80138786 is 68783108.

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 11 ways as a sum of consecutive naturals, for example, 14570 + ... + 19301.

It is an arithmetic number, because the mean of its divisors is an integer number (6198576).

Almost surely, 2^80138786 is an apocalyptic number.

80138786 is a deficient number, since it is larger than the sum of its proper divisors (68627038).

80138786 is a wasteful number, since it uses less digits than its factorization.

80138786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33906 (or 33893 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 80138786 is about 8952.0269213179. The cubic root of 80138786 is about 431.1359651997.

The spelling of 80138786 in words is "eighty million, one hundred thirty-eight thousand, seven hundred eighty-six".