82106451438 has 16 divisors (see below), whose sum is σ = 179141348736. Its totient is φ = 24880742840.

The previous prime is 82106451433. The next prime is 82106451451. The reversal of 82106451438 is 83415460128.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 82106451438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82106451433) 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, 622018506 + ... + 622018637.

It is an arithmetic number, because the mean of its divisors is an integer number (11196334296).

Almost surely, 2^82106451438 is an apocalyptic number.

82106451438 is an abundant number, since it is smaller than the sum of its proper divisors (97034897298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82106451438 is a wasteful number, since it uses less digits than its factorization.

82106451438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244037159.

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 82106451438 in words is "eighty-two billion, one hundred six million, four hundred fifty-one thousand, four hundred thirty-eight".