135378725677 has 8 divisors (see below), whose sum is σ = 150495457280. Its totient is φ = 120933848880.

The previous prime is 135378725663. The next prime is 135378725717. The reversal of 135378725677 is 776527873531.

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

It is a de Polignac number, because none of the positive numbers 2^k-135378725677 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 (135378725077) 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, 167963277 + ... + 167964082.

It is an arithmetic number, because the mean of its divisors is an integer number (18811932160).

Almost surely, 2^135378725677 is an apocalyptic number.

It is an amenable number.

135378725677 is a deficient number, since it is larger than the sum of its proper divisors (15116731603).

135378725677 is a wasteful number, since it uses less digits than its factorization.

135378725677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335927403.

The product of its digits is 51861600, while the sum is 61.

The spelling of 135378725677 in words is "one hundred thirty-five billion, three hundred seventy-eight million, seven hundred twenty-five thousand, six hundred seventy-seven".