82144463913 has 48 divisors (see below), whose sum is σ = 131580274176. Its totient is φ = 49118192640.

The previous prime is 82144463911. The next prime is 82144463963. The reversal of 82144463913 is 31936444128.

82144463913 is a `hidden beast` number, since 8 + 2 + 1 + 4 + 4 + 4 + 639 + 1 + 3 = 666.

It is not a de Polignac number, because 82144463913 - 2¹ = 82144463911 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82144463911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 910581 + ... + 996717.

It is an arithmetic number, because the mean of its divisors is an integer number (2741255712).

Almost surely, 2^82144463913 is an apocalyptic number.

It is an amenable number.

82144463913 is a deficient number, since it is larger than the sum of its proper divisors (49435810263).

82144463913 is a wasteful number, since it uses less digits than its factorization.

82144463913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86454 (or 86451 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The spelling of 82144463913 in words is "eighty-two billion, one hundred forty-four million, four hundred sixty-three thousand, nine hundred thirteen".