133764284644 has 81 divisors (see below), whose sum is σ = 257690245449. Its totient is φ = 60741767040.

The previous prime is 133764284617. The next prime is 133764284651. The reversal of 133764284644 is 446482467331.

The square root of 133764284644 is 365738.

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

It can be written as a sum of positive squares in only one way, i.e., 104141744100 + 29622540544 = 322710^2 + 172112^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133764284591 and 133764284600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 385487679 + ... + 385488025.

Almost surely, 2^133764284644 is an apocalyptic number.

133764284644 is the 365738-th square number.

It is an amenable number.

133764284644 is a deficient number, since it is larger than the sum of its proper divisors (123925960805).

133764284644 is an equidigital number, since it uses as much as digits as its factorization.

133764284644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 397 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 52.

The spelling of 133764284644 in words is "one hundred thirty-three billion, seven hundred sixty-four million, two hundred eighty-four thousand, six hundred forty-four".