134968421025378 has 24 divisors (see below), whose sum is σ = 292432447380528. Its totient is φ = 44989340060952.

The previous prime is 134968421025371. The next prime is 134968421025379. The reversal of 134968421025378 is 873520124869431.

It is a happy number.

134968421025378 is a `hidden beast` number, since 1 + 3 + 4 + 9 + 6 + 84 + 2 + 10 + 2 + 537 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (134968421025371) 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, 4808200 + ... + 17118867.

It is an arithmetic number, because the mean of its divisors is an integer number (12184685307522).

It is a 1-persistent number, because it is pandigital, but 2⋅134968421025378 = 269936842050756 is not.

Almost surely, 2^{134968421025378} is an apocalyptic number.

134968421025378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

134968421025378 is an abundant number, since it is smaller than the sum of its proper divisors (157464026355150).

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

134968421025378 is a wasteful number, since it uses less digits than its factorization.

134968421025378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22269038 (or 22269035 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 134968421025378 in words is "one hundred thirty-four trillion, nine hundred sixty-eight billion, four hundred twenty-one million, twenty-five thousand, three hundred seventy-eight".