135915774228 has 48 divisors (see below), whose sum is σ = 379479943360. Its totient is φ = 41820237792.

The previous prime is 135915774227. The next prime is 135915774287. The reversal of 135915774228 is 822477519531.

135915774228 is a `hidden beast` number, since 1 + 3 + 5 + 9 + 1 + 577 + 42 + 28 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135915774227) 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 15 ways as a sum of consecutive naturals, for example, 48401650 + ... + 48404457.

Almost surely, 2^135915774228 is an apocalyptic number.

135915774228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

135915774228 is an abundant number, since it is smaller than the sum of its proper divisors (243564169132).

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

135915774228 is a wasteful number, since it uses less digits than its factorization.

135915774228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96806133 (or 96806125 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 135915774228 in words is "one hundred thirty-five billion, nine hundred fifteen million, seven hundred seventy-four thousand, two hundred twenty-eight".