81467348141472 has 48 divisors (see below), whose sum is σ = 213883665922080. Its totient is φ = 27151734834432.

The previous prime is 81467348141411. The next prime is 81467348141497. The reversal of 81467348141472 is 27414184376418.

81467348141472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62600698 + ... + 63888825.

It is an arithmetic number, because the mean of its divisors is an integer number (4455909706710).

Almost surely, 2^{81467348141472} is an apocalyptic number.

It is an amenable number.

81467348141472 is an abundant number, since it is smaller than the sum of its proper divisors (132416317780608).

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

81467348141472 is a wasteful number, since it uses less digits than its factorization.

81467348141472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126496245 (or 126496237 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 60.

The spelling of 81467348141472 in words is "eighty-one trillion, four hundred sixty-seven billion, three hundred forty-eight million, one hundred forty-one thousand, four hundred seventy-two".