80692662521 has 8 divisors (see below), whose sum is σ = 82997064480. Its totient is φ = 78407707392.

The previous prime is 80692662509. The next prime is 80692662563. The reversal of 80692662521 is 12526629608.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80692662521 is a prime.

It is a super-3 number, since 3×80692662521³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80692662571) 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 7 ways as a sum of consecutive naturals, for example, 4853291 + ... + 4869888.

It is an arithmetic number, because the mean of its divisors is an integer number (10374633060).

Almost surely, 2^80692662521 is an apocalyptic number.

It is an amenable number.

80692662521 is a deficient number, since it is larger than the sum of its proper divisors (2304401959).

80692662521 is a wasteful number, since it uses less digits than its factorization.

80692662521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9723415.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 80692662521 in words is "eighty billion, six hundred ninety-two million, six hundred sixty-two thousand, five hundred twenty-one".