205734408134 has 8 divisors (see below), whose sum is σ = 308607204360. Its totient is φ = 102865340016.

The previous prime is 205734408091. The next prime is 205734408137. The reversal of 205734408134 is 431804437502.

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

It is a junction number, because it is equal to n+sod(n) for n = 205734408091 and 205734408100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205734408137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789719 + ... + 1017410.

It is an arithmetic number, because the mean of its divisors is an integer number (38575900545).

Almost surely, 2^205734408134 is an apocalyptic number.

205734408134 is a deficient number, since it is larger than the sum of its proper divisors (102872796226).

205734408134 is a wasteful number, since it uses less digits than its factorization.

205734408134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864054.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 205734408134 in words is "two hundred five billion, seven hundred thirty-four million, four hundred eight thousand, one hundred thirty-four".