136421384142408 has 32 divisors (see below), whose sum is σ = 344071632578400. Its totient is φ = 45071371751168.

The previous prime is 136421384142403. The next prime is 136421384142427. The reversal of 136421384142408 is 804241483124631.

It is a super-2 number, since 2×136421384142408² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (136421384142401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25151432418 + ... + 25151437841.

It is an arithmetic number, because the mean of its divisors is an integer number (10752238518075).

Almost surely, 2^{136421384142408} is an apocalyptic number.

It is an amenable number.

136421384142408 is an abundant number, since it is smaller than the sum of its proper divisors (207650248435992).

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

136421384142408 is a wasteful number, since it uses less digits than its factorization.

136421384142408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50302870381 (or 50302870377 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 51.

The spelling of 136421384142408 in words is "one hundred thirty-six trillion, four hundred twenty-one billion, three hundred eighty-four million, one hundred forty-two thousand, four hundred eight".