134689769551 has 16 divisors (see below), whose sum is σ = 142183641600. Its totient is φ = 127337889888.

The previous prime is 134689769509. The next prime is 134689769573. The reversal of 134689769551 is 155967986431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134689769551 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 (134689769581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018045 + ... + 1142713.

It is an arithmetic number, because the mean of its divisors is an integer number (8886477600).

Almost surely, 2^134689769551 is an apocalyptic number.

134689769551 is a deficient number, since it is larger than the sum of its proper divisors (7493872049).

134689769551 is a wasteful number, since it uses less digits than its factorization.

134689769551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125238.

The product of its digits is 48988800, while the sum is 64.

The spelling of 134689769551 in words is "one hundred thirty-four billion, six hundred eighty-nine million, seven hundred sixty-nine thousand, five hundred fifty-one".