135421335468 has 36 divisors (see below), whose sum is σ = 344777753320. Its totient is φ = 44815692096.

The previous prime is 135421335431. The next prime is 135421335527. The reversal of 135421335468 is 864533124531.

135421335468 is a `hidden beast` number, since 1 + 3 + 54 + 2 + 133 + 5 + 468 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×135421335468³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13526305 + ... + 13536312.

Almost surely, 2^135421335468 is an apocalyptic number.

135421335468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

135421335468 is an abundant number, since it is smaller than the sum of its proper divisors (209356417852).

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

135421335468 is a wasteful number, since it uses less digits than its factorization.

135421335468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27062766 (or 27062761 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

Adding to 135421335468 its reverse (864533124531), we get a palindrome (999954459999).

The spelling of 135421335468 in words is "one hundred thirty-five billion, four hundred twenty-one million, three hundred thirty-five thousand, four hundred sixty-eight".