134788833421 has 12 divisors (see below), whose sum is σ = 149043506976. Its totient is φ = 121801540520.

The previous prime is 134788833359. The next prime is 134788833437. The reversal of 134788833421 is 124338887431.

It is not a de Polignac number, because 134788833421 - 2⁷ = 134788833293 is a prime.

It is a super-2 number, since 2×134788833421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134788833481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3314995 + ... + 3355408.

It is an arithmetic number, because the mean of its divisors is an integer number (12420292248).

Almost surely, 2^134788833421 is an apocalyptic number.

134788833421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134788833421 is a deficient number, since it is larger than the sum of its proper divisors (14254673555).

134788833421 is a wasteful number, since it uses less digits than its factorization.

134788833421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670592 (or 6670581 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 52.

The spelling of 134788833421 in words is "one hundred thirty-four billion, seven hundred eighty-eight million, eight hundred thirty-three thousand, four hundred twenty-one".