84435744436 has 6 divisors (see below), whose sum is σ = 147762552770. Its totient is φ = 42217872216.

The previous prime is 84435744433. The next prime is 84435744479. The reversal of 84435744436 is 63444753448.

It can be written as a sum of positive squares in only one way, i.e., 76126328100 + 8309416336 = 275910^2 + 91156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84435744433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10554468051 + ... + 10554468058.

Almost surely, 2^84435744436 is an apocalyptic number.

It is an amenable number.

84435744436 is a deficient number, since it is larger than the sum of its proper divisors (63326808334).

84435744436 is a wasteful number, since it uses less digits than its factorization.

84435744436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21108936113 (or 21108936111 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 52.

The spelling of 84435744436 in words is "eighty-four billion, four hundred thirty-five million, seven hundred forty-four thousand, four hundred thirty-six".