134421191578401 has 96 divisors (see below), whose sum is σ = 231995440889856. Its totient is φ = 68549692176000.

The previous prime is 134421191578393. The next prime is 134421191578411. The reversal of 134421191578401 is 104875191124431.

It is not a de Polignac number, because 134421191578401 - 2³ = 134421191578393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134421191578411) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59977056 + ... + 62177886.

It is an arithmetic number, because the mean of its divisors is an integer number (2416619175936).

Almost surely, 2^{134421191578401} is an apocalyptic number.

It is an amenable number.

134421191578401 is a deficient number, since it is larger than the sum of its proper divisors (97574249311455).

134421191578401 is a wasteful number, since it uses less digits than its factorization.

134421191578401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201923 (or 2201916 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 134421191578401 in words is "one hundred thirty-four trillion, four hundred twenty-one billion, one hundred ninety-one million, five hundred seventy-eight thousand, four hundred one".