84534993013 has 2 divisors, whose sum is σ = 84534993014. Its totient is φ = 84534993012.

The previous prime is 84534993001. The next prime is 84534993079. The reversal of 84534993013 is 31039943548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84484398244 + 50594769 = 290662^2 + 7113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84534993013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84534993083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42267496506 + 42267496507.

It is an arithmetic number, because the mean of its divisors is an integer number (42267496507).

Almost surely, 2^84534993013 is an apocalyptic number.

It is an amenable number.

84534993013 is a deficient number, since it is larger than the sum of its proper divisors (1).

84534993013 is an equidigital number, since it uses as much as digits as its factorization.

84534993013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 84534993013 in words is "eighty-four billion, five hundred thirty-four million, nine hundred ninety-three thousand, thirteen".