82489626691 has 8 divisors (see below), whose sum is σ = 82577476800. Its totient is φ = 82401811968.

The previous prime is 82489626641. The next prime is 82489626733. The reversal of 82489626691 is 19662698428.

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 82489626691 - 2¹³ = 82489618499 is a prime.

It is a super-3 number, since 3×82489626691³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82489626601) 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, 9669670 + ... + 9678196.

It is an arithmetic number, because the mean of its divisors is an integer number (10322184600).

Almost surely, 2^82489626691 is an apocalyptic number.

82489626691 is a deficient number, since it is larger than the sum of its proper divisors (87850109).

82489626691 is a wasteful number, since it uses less digits than its factorization.

82489626691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17693.

The product of its digits is 17915904, while the sum is 61.

The spelling of 82489626691 in words is "eighty-two billion, four hundred eighty-nine million, six hundred twenty-six thousand, six hundred ninety-one".