82044943491 has 16 divisors (see below), whose sum is σ = 125025758208. Its totient is φ = 46880990400.

The previous prime is 82044943489. The next prime is 82044943571. The reversal of 82044943491 is 19434944028.

It is not a de Polignac number, because 82044943491 - 2¹ = 82044943489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82044943491.

It is not an unprimeable number, because it can be changed into a prime (82044943441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621046 + ... + 741476.

It is an arithmetic number, because the mean of its divisors is an integer number (7814109888).

Almost surely, 2^82044943491 is an apocalyptic number.

82044943491 is a deficient number, since it is larger than the sum of its proper divisors (42980814717).

82044943491 is a wasteful number, since it uses less digits than its factorization.

82044943491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152882.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 82044943491 in words is "eighty-two billion, forty-four million, nine hundred forty-three thousand, four hundred ninety-one".