135630177678 has 40 divisors (see below), whose sum is σ = 306752403672. Its totient is φ = 44787529584.

The previous prime is 135630177677. The next prime is 135630177707. The reversal of 135630177678 is 876771036531.

135630177678 is a `hidden beast` number, since 1 + 3 + 563 + 0 + 1 + 7 + 7 + 6 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135630177673) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3894925 + ... + 3929592.

Almost surely, 2^135630177678 is an apocalyptic number.

135630177678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135630177678 is an abundant number, since it is smaller than the sum of its proper divisors (171122225994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135630177678 is a wasteful number, since it uses less digits than its factorization.

135630177678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824638 (or 7824629 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 135630177678 in words is "one hundred thirty-five billion, six hundred thirty million, one hundred seventy-seven thousand, six hundred seventy-eight".