83638450904836 has 27 divisors (see below), whose sum is σ = 146515416027253. Its totient is φ = 41776946240480.

The previous prime is 83638450904819. The next prime is 83638450904849. The reversal of 83638450904836 is 63840905483638.

The square root of 83638450904836 is 9145406.

It is a perfect power (a square), and thus also a powerful number.

83638450904836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 69364078820100 + 14274372084736 = 8328510^2 + 3778144^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26210732001 + ... + 26210735191.

Almost surely, 2^{83638450904836} is an apocalyptic number.

83638450904836 is the 9145406-th square number.

It is an amenable number.

83638450904836 is a deficient number, since it is larger than the sum of its proper divisors (62876965122417).

83638450904836 is an frugal number, since it uses more digits than its factorization.

83638450904836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252 (or 4626 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 67.

The spelling of 83638450904836 in words is "eighty-three trillion, six hundred thirty-eight billion, four hundred fifty million, nine hundred four thousand, eight hundred thirty-six".