136405521327 has 8 divisors (see below), whose sum is σ = 181876126464. Its totient is φ = 90935965208.

The previous prime is 136405521299. The next prime is 136405521337. The reversal of 136405521327 is 723125504631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136405521327 - 2⁸ = 136405521071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136405521337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121288 + ... + 536210.

It is an arithmetic number, because the mean of its divisors is an integer number (22734515808).

Almost surely, 2^136405521327 is an apocalyptic number.

136405521327 is a deficient number, since it is larger than the sum of its proper divisors (45470605137).

136405521327 is a wasteful number, since it uses less digits than its factorization.

136405521327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524509.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 136405521327 in words is "one hundred thirty-six billion, four hundred five million, five hundred twenty-one thousand, three hundred twenty-seven".