135427899204 has 432 divisors, whose sum is σ = 412979478912. Its totient is φ = 37226262528.

The previous prime is 135427899199. The next prime is 135427899239. The reversal of 135427899204 is 402998724531.

135427899204 is a `hidden beast` number, since 1 + 3 + 5 + 427 + 8 + 9 + 9 + 204 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 164553537 + ... + 164554359.

It is an arithmetic number, because the mean of its divisors is an integer number (955971016).

Almost surely, 2^135427899204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135427899204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206489739456).

135427899204 is an abundant number, since it is smaller than the sum of its proper divisors (277551579708).

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

135427899204 is a wasteful number, since it uses less digits than its factorization.

135427899204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 135427899204 in words is "one hundred thirty-five billion, four hundred twenty-seven million, eight hundred ninety-nine thousand, two hundred four".