134681344562519 has 64 divisors (see below), whose sum is σ = 145079985254400. Its totient is φ = 124754182705152.

The previous prime is 134681344562489. The next prime is 134681344562533. The reversal of 134681344562519 is 915265443186431.

It is a de Polignac number, because none of the positive numbers 2^k-134681344562519 is a prime.

It is a super-3 number, since 3×134681344562519³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134681344562419) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8932893209 + ... + 8932908285.

It is an arithmetic number, because the mean of its divisors is an integer number (2266874769600).

Almost surely, 2^{134681344562519} is an apocalyptic number.

134681344562519 is a deficient number, since it is larger than the sum of its proper divisors (10398640691881).

134681344562519 is a wasteful number, since it uses less digits than its factorization.

134681344562519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15744.

The product of its digits is 74649600, while the sum is 62.

The spelling of 134681344562519 in words is "one hundred thirty-four trillion, six hundred eighty-one billion, three hundred forty-four million, five hundred sixty-two thousand, five hundred nineteen".