82640440854358 has 8 divisors (see below), whose sum is σ = 125529783576480. Its totient is φ = 40797179662200.

The previous prime is 82640440854329. The next prime is 82640440854359. The reversal of 82640440854358 is 85345804404628.

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

It is a junction number, because it is equal to n+sod(n) for n = 82640440854296 and 82640440854305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82640440854359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261520382293 + ... + 261520382608.

It is an arithmetic number, because the mean of its divisors is an integer number (15691222947060).

Almost surely, 2^{82640440854358} is an apocalyptic number.

82640440854358 is a deficient number, since it is larger than the sum of its proper divisors (42889342722122).

82640440854358 is a wasteful number, since it uses less digits than its factorization.

82640440854358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523040764982.

The product of its (nonzero) digits is 117964800, while the sum is 61.

The spelling of 82640440854358 in words is "eighty-two trillion, six hundred forty billion, four hundred forty million, eight hundred fifty-four thousand, three hundred fifty-eight".