135780448823 has 8 divisors (see below), whose sum is σ = 136163191296. Its totient is φ = 135397807200.

The previous prime is 135780448781. The next prime is 135780448831. The reversal of 135780448823 is 328844087531.

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

It is a cyclic number.

It is not a de Polignac number, because 135780448823 - 2¹⁸ = 135780186679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135780448883) 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, 3273353 + ... + 3314573.

It is an arithmetic number, because the mean of its divisors is an integer number (17020398912).

Almost surely, 2^135780448823 is an apocalyptic number.

135780448823 is a deficient number, since it is larger than the sum of its proper divisors (382742473).

135780448823 is an equidigital number, since it uses as much as digits as its factorization.

135780448823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50425.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 135780448823 in words is "one hundred thirty-five billion, seven hundred eighty million, four hundred forty-eight thousand, eight hundred twenty-three".