135628744865231 has 8 divisors (see below), whose sum is σ = 137853163489104. Its totient is φ = 133404358389120.

The previous prime is 135628744865213. The next prime is 135628744865261. The reversal of 135628744865231 is 132568447826531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135628744865231 is a prime.

It is a super-2 number, since 2×135628744865231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135628744865261) 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, 544616 + ... + 16478898.

It is an arithmetic number, because the mean of its divisors is an integer number (17231645436138).

Almost surely, 2^{135628744865231} is an apocalyptic number.

135628744865231 is a deficient number, since it is larger than the sum of its proper divisors (2224418623873).

135628744865231 is a wasteful number, since it uses less digits than its factorization.

135628744865231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16073881.

The product of its digits is 232243200, while the sum is 65.

The spelling of 135628744865231 in words is "one hundred thirty-five trillion, six hundred twenty-eight billion, seven hundred forty-four million, eight hundred sixty-five thousand, two hundred thirty-one".