135420383387999 has 8 divisors (see below), whose sum is σ = 139869445794432. Its totient is φ = 130976362415520.

The previous prime is 135420383387963. The next prime is 135420383388013. The reversal of 135420383387999 is 999783383024531.

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 135420383387999 - 2⁸ = 135420383387743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135420383387929) 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, 1260303884 + ... + 1260411329.

It is an arithmetic number, because the mean of its divisors is an integer number (17483680724304).

Almost surely, 2^{135420383387999} is an apocalyptic number.

135420383387999 is a deficient number, since it is larger than the sum of its proper divisors (4449062406433).

135420383387999 is a wasteful number, since it uses less digits than its factorization.

135420383387999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520716977.

The product of its (nonzero) digits is 1058158080, while the sum is 74.

The spelling of 135420383387999 in words is "one hundred thirty-five trillion, four hundred twenty billion, three hundred eighty-three million, three hundred eighty-seven thousand, nine hundred ninety-nine".