135909078394 has 8 divisors (see below), whose sum is σ = 203881995540. Its totient is φ = 67948413216.

The previous prime is 135909078379. The next prime is 135909078427. The reversal of 135909078394 is 493870909531.

It can be written as a sum of positive squares in 2 ways, for example, as 73556491369 + 62352587025 = 271213^2 + 249705^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035209 + ... + 3079660.

Almost surely, 2^135909078394 is an apocalyptic number.

135909078394 is a deficient number, since it is larger than the sum of its proper divisors (67972917146).

135909078394 is a wasteful number, since it uses less digits than its factorization.

135909078394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125984.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 135909078394 in words is "one hundred thirty-five billion, nine hundred nine million, seventy-eight thousand, three hundred ninety-four".