135677132583421 has 16 divisors (see below), whose sum is σ = 159408886271040. Its totient is φ = 113846382673920.

The previous prime is 135677132583379. The next prime is 135677132583437. The reversal of 135677132583421 is 124385231776531.

It is a happy number.

It is not a de Polignac number, because 135677132583421 - 2¹¹ = 135677132581373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135677132581421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33730251 + ... + 37537768.

It is an arithmetic number, because the mean of its divisors is an integer number (9963055391940).

Almost surely, 2^{135677132583421} is an apocalyptic number.

135677132583421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135677132583421 is a deficient number, since it is larger than the sum of its proper divisors (23731753687619).

135677132583421 is a wasteful number, since it uses less digits than its factorization.

135677132583421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71281356.

The product of its digits is 25401600, while the sum is 58.

The spelling of 135677132583421 in words is "one hundred thirty-five trillion, six hundred seventy-seven billion, one hundred thirty-two million, five hundred eighty-three thousand, four hundred twenty-one".