82040041990 has 8 divisors (see below), whose sum is σ = 147672075600. Its totient is φ = 32816016792.

The previous prime is 82040041987. The next prime is 82040042129. The reversal of 82040041990 is 9914004028.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4102002090 + ... + 4102002109.

It is an arithmetic number, because the mean of its divisors is an integer number (18459009450).

Almost surely, 2^82040041990 is an apocalyptic number.

82040041990 is a deficient number, since it is larger than the sum of its proper divisors (65632033610).

82040041990 is a wasteful number, since it uses less digits than its factorization.

82040041990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204004206.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 82040041990 in words is "eighty-two billion, forty million, forty-one thousand, nine hundred ninety".