84012544547 has 4 divisors (see below), whose sum is σ = 85436486040. Its totient is φ = 82588603056.

The previous prime is 84012544541. The next prime is 84012544559. The reversal of 84012544547 is 74544521048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84012544547 - 2⁴ = 84012544531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84012544498 and 84012544507.

It is not an unprimeable number, because it can be changed into a prime (84012544541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711970658 + ... + 711970775.

It is an arithmetic number, because the mean of its divisors is an integer number (21359121510).

Almost surely, 2^84012544547 is an apocalyptic number.

84012544547 is a deficient number, since it is larger than the sum of its proper divisors (1423941493).

84012544547 is a wasteful number, since it uses less digits than its factorization.

84012544547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423941492.

The product of its (nonzero) digits is 716800, while the sum is 44.

The spelling of 84012544547 in words is "eighty-four billion, twelve million, five hundred forty-four thousand, five hundred forty-seven".