82144743769 has 8 divisors (see below), whose sum is σ = 89931356640. Its totient is φ = 74411282400.

The previous prime is 82144743749. The next prime is 82144743841. The reversal of 82144743769 is 96734744128.

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 82144743769 - 2¹³ = 82144735577 is a prime.

It is a super-2 number, since 2×82144743769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82144743749) 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, 13284639 + ... + 13290820.

It is an arithmetic number, because the mean of its divisors is an integer number (11241419580).

Almost surely, 2^82144743769 is an apocalyptic number.

It is an amenable number.

82144743769 is a deficient number, since it is larger than the sum of its proper divisors (7786612871).

82144743769 is a wasteful number, since it uses less digits than its factorization.

82144743769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26575751.

The product of its digits is 8128512, while the sum is 55.

The spelling of 82144743769 in words is "eighty-two billion, one hundred forty-four million, seven hundred forty-three thousand, seven hundred sixty-nine".