82981185912 has 64 divisors (see below), whose sum is σ = 230751972000. Its totient is φ = 27630554112.

The previous prime is 82981185907. The next prime is 82981185949. The reversal of 82981185912 is 21958118928.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6103 + ... + 407430.

Almost surely, 2^82981185912 is an apocalyptic number.

It is an amenable number.

82981185912 is an abundant number, since it is smaller than the sum of its proper divisors (147770786088).

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

82981185912 is a wasteful number, since it uses less digits than its factorization.

82981185912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414477 (or 414467 counting only the distinct ones).

The product of its digits is 829440, while the sum is 54.

The spelling of 82981185912 in words is "eighty-two billion, nine hundred eighty-one million, one hundred eighty-five thousand, nine hundred twelve".