84211575047747 has 12 divisors (see below), whose sum is σ = 97960960366776. Its totient is φ = 72180939811680.

The previous prime is 84211575047737. The next prime is 84211575047777. The reversal of 84211575047747 is 74774057511248.

It is not a de Polignac number, because 84211575047747 - 2²⁰ = 84211573999171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84211575047747.

It is not an unprimeable number, because it can be changed into a prime (84211575047737) 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 11 ways as a sum of consecutive naturals, for example, 3988847 + ... + 13576967.

It is an arithmetic number, because the mean of its divisors is an integer number (8163413363898).

Almost surely, 2^{84211575047747} is an apocalyptic number.

84211575047747 is a deficient number, since it is larger than the sum of its proper divisors (13749385319029).

84211575047747 is a wasteful number, since it uses less digits than its factorization.

84211575047747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9767378 (or 9767371 counting only the distinct ones).

The product of its (nonzero) digits is 61465600, while the sum is 62.

The spelling of 84211575047747 in words is "eighty-four trillion, two hundred eleven billion, five hundred seventy-five million, forty-seven thousand, seven hundred forty-seven".