134669818397 has 8 divisors (see below), whose sum is σ = 137972982840. Its totient is φ = 131367536640.

The previous prime is 134669818373. The next prime is 134669818433. The reversal of 134669818397 is 793818966431.

It can be written as a sum of positive squares in 4 ways, for example, as 9142036996 + 125527781401 = 95614^2 + 354299^2 .

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 134669818397 - 2⁸ = 134669818141 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 (134669818307) 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, 93629 + ... + 527357.

It is an arithmetic number, because the mean of its divisors is an integer number (17246622855).

Almost surely, 2^134669818397 is an apocalyptic number.

It is an amenable number.

134669818397 is a deficient number, since it is larger than the sum of its proper divisors (3303164443).

134669818397 is an equidigital number, since it uses as much as digits as its factorization.

134669818397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441343.

The product of its digits is 47029248, while the sum is 65.

The spelling of 134669818397 in words is "one hundred thirty-four billion, six hundred sixty-nine million, eight hundred eighteen thousand, three hundred ninety-seven".