80981524651 has 8 divisors (see below), whose sum is σ = 81237555200. Its totient is φ = 80725717800.

The previous prime is 80981524639. The next prime is 80981524667. The reversal of 80981524651 is 15642518908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80981524651 - 2²³ = 80973136043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80981524595 and 80981524604.

It is not an unprimeable number, because it can be changed into a prime (80981524601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684670 + ... + 794188.

It is an arithmetic number, because the mean of its divisors is an integer number (10154694400).

Almost surely, 2^80981524651 is an apocalyptic number.

80981524651 is a deficient number, since it is larger than the sum of its proper divisors (256030549).

80981524651 is a wasteful number, since it uses less digits than its factorization.

80981524651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111849.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 80981524651 in words is "eighty billion, nine hundred eighty-one million, five hundred twenty-four thousand, six hundred fifty-one".