82624438685 has 8 divisors (see below), whose sum is σ = 100829823840. Its totient is φ = 64979219344.

The previous prime is 82624438681. The next prime is 82624438693. The reversal of 82624438685 is 58683442628.

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 not a de Polignac number, because 82624438685 - 2² = 82624438681 is a prime.

It is a super-2 number, since 2×82624438685² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82624438685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82624438681) 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, 140041127 + ... + 140041716.

It is an arithmetic number, because the mean of its divisors is an integer number (12603727980).

Almost surely, 2^82624438685 is an apocalyptic number.

It is an amenable number.

82624438685 is a deficient number, since it is larger than the sum of its proper divisors (18205385155).

82624438685 is a wasteful number, since it uses less digits than its factorization.

82624438685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280082907.

The product of its digits is 17694720, while the sum is 56.

The spelling of 82624438685 in words is "eighty-two billion, six hundred twenty-four million, four hundred thirty-eight thousand, six hundred eighty-five".