80968651 has 4 divisors (see below), whose sum is σ = 81014704. Its totient is φ = 80922600.

The previous prime is 80968597. The next prime is 80968661. The reversal of 80968651 is 15686908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80968651 - 2¹¹ = 80966603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80968598 and 80968607.

It is not an unprimeable number, because it can be changed into a prime (80968661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20280 + ... + 23941.

It is an arithmetic number, because the mean of its divisors is an integer number (20253676).

Almost surely, 2^80968651 is an apocalyptic number.

80968651 is a deficient number, since it is larger than the sum of its proper divisors (46053).

80968651 is a wasteful number, since it uses less digits than its factorization.

80968651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46052.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 80968651 is about 8998.2582203446. The cubic root of 80968651 is about 432.6190452701.

The spelling of 80968651 in words is "eighty million, nine hundred sixty-eight thousand, six hundred fifty-one".