84181263964 has 48 divisors (see below), whose sum is σ = 173828874240. Its totient is φ = 34906798080.

The previous prime is 84181263931. The next prime is 84181263967. The reversal of 84181263964 is 46936218148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84181263967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8535324 + ... + 8545180.

It is an arithmetic number, because the mean of its divisors is an integer number (3621434880).

Almost surely, 2^84181263964 is an apocalyptic number.

It is an amenable number.

84181263964 is an abundant number, since it is smaller than the sum of its proper divisors (89647610276).

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

84181263964 is a wasteful number, since it uses less digits than its factorization.

84181263964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19738 (or 19736 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The spelling of 84181263964 in words is "eighty-four billion, one hundred eighty-one million, two hundred sixty-three thousand, nine hundred sixty-four".