82148573971836 has 18 divisors (see below), whose sum is σ = 207653339762232. Its totient is φ = 27382857990600.

The previous prime is 82148573971823. The next prime is 82148573971837. The reversal of 82148573971836 is 63817937584128.

82148573971836 is a `hidden beast` number, since 8 + 2 + 1 + 4 + 8 + 57 + 397 + 183 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×82148573971836² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82148573971837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1140952416240 + ... + 1140952416311.

Almost surely, 2^{82148573971836} is an apocalyptic number.

It is an amenable number.

82148573971836 is an abundant number, since it is smaller than the sum of its proper divisors (125504765790396).

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

82148573971836 is a wasteful number, since it uses less digits than its factorization.

82148573971836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281904832561 (or 2281904832556 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 72.

The spelling of 82148573971836 in words is "eighty-two trillion, one hundred forty-eight billion, five hundred seventy-three million, nine hundred seventy-one thousand, eight hundred thirty-six".