135404420544 has 42 divisors (see below), whose sum is σ = 388112325120. Its totient is φ = 45134806656.

The previous prime is 135404420533. The next prime is 135404420551. The reversal of 135404420544 is 445024404531.

135404420544 is a `hidden beast` number, since 1 + 3 + 5 + 404 + 4 + 205 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 135404420499 and 135404420508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117537984 + ... + 117539135.

Almost surely, 2^135404420544 is an apocalyptic number.

It is an amenable number.

135404420544 is an abundant number, since it is smaller than the sum of its proper divisors (252707904576).

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

135404420544 is a wasteful number, since it uses less digits than its factorization.

135404420544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235077137 (or 235077124 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 135404420544 in words is "one hundred thirty-five billion, four hundred four million, four hundred twenty thousand, five hundred forty-four".