84556335696639 has 8 divisors (see below), whose sum is σ = 117643597491072. Its totient is φ = 53919982183320.

The previous prime is 84556335696611. The next prime is 84556335696689. The reversal of 84556335696639 is 93669653365548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84556335696639 - 2²⁷ = 84556201478911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84556335696689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612727070197 + ... + 612727070334.

It is an arithmetic number, because the mean of its divisors is an integer number (14705449686384).

Almost surely, 2^{84556335696639} is an apocalyptic number.

84556335696639 is a deficient number, since it is larger than the sum of its proper divisors (33087261794433).

84556335696639 is a wasteful number, since it uses less digits than its factorization.

84556335696639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225454140557.

The product of its digits is 11337408000, while the sum is 78.

The spelling of 84556335696639 in words is "eighty-four trillion, five hundred fifty-six billion, three hundred thirty-five million, six hundred ninety-six thousand, six hundred thirty-nine".