135670756717 has 4 divisors (see below), whose sum is σ = 142811322880. Its totient is φ = 128530190556.

The previous prime is 135670756657. The next prime is 135670756757. The reversal of 135670756717 is 717657076531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135670756717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135670756757) 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, 3570283053 + ... + 3570283090.

It is an arithmetic number, because the mean of its divisors is an integer number (35702830720).

Almost surely, 2^135670756717 is an apocalyptic number.

It is an amenable number.

135670756717 is a deficient number, since it is larger than the sum of its proper divisors (7140566163).

135670756717 is an equidigital number, since it uses as much as digits as its factorization.

135670756717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140566162.

The product of its (nonzero) digits is 6482700, while the sum is 55.

The spelling of 135670756717 in words is "one hundred thirty-five billion, six hundred seventy million, seven hundred fifty-six thousand, seven hundred seventeen".