84771547007 has 4 divisors (see below), whose sum is σ = 96881768016. Its totient is φ = 72661326000.

The previous prime is 84771547001. The next prime is 84771547067. The reversal of 84771547007 is 70074517748.

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 84771547007 - 2⁴ = 84771546991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84771547001) 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, 6055110494 + ... + 6055110507.

It is an arithmetic number, because the mean of its divisors is an integer number (24220442004).

Almost surely, 2^84771547007 is an apocalyptic number.

84771547007 is a deficient number, since it is larger than the sum of its proper divisors (12110221009).

84771547007 is a wasteful number, since it uses less digits than its factorization.

84771547007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12110221008.

The product of its (nonzero) digits is 1536640, while the sum is 50.

The spelling of 84771547007 in words is "eighty-four billion, seven hundred seventy-one million, five hundred forty-seven thousand, seven".