84613044031647 has 16 divisors (see below), whose sum is σ = 114946737003360. Its totient is φ = 55344036780032.

The previous prime is 84613044031643. The next prime is 84613044031699. The reversal of 84613044031647 is 74613044031648.

It is a cyclic number.

It is not a de Polignac number, because 84613044031647 - 2² = 84613044031643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84613044031647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84613044031643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25373479 + ... + 28513847.

It is an arithmetic number, because the mean of its divisors is an integer number (7184171062710).

Almost surely, 2^{84613044031647} is an apocalyptic number.

84613044031647 is a deficient number, since it is larger than the sum of its proper divisors (30333692971713).

84613044031647 is a wasteful number, since it uses less digits than its factorization.

84613044031647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309882.

The product of its (nonzero) digits is 4644864, while the sum is 51.

Subtracting from 84613044031647 its reverse (74613044031648), we obtain a palindrome (9999999999999).

The spelling of 84613044031647 in words is "eighty-four trillion, six hundred thirteen billion, forty-four million, thirty-one thousand, six hundred forty-seven".