134669878256 has 20 divisors (see below), whose sum is σ = 261545629800. Its totient is φ = 67174231872.

The previous prime is 134669878253. The next prime is 134669878283. The reversal of 134669878256 is 652878966431.

It is a super-2 number, since 2×134669878256² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 134669878192 and 134669878201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134669878253) 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, 10037291 + ... + 10050698.

It is an arithmetic number, because the mean of its divisors is an integer number (13077281490).

Almost surely, 2^134669878256 is an apocalyptic number.

134669878256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

134669878256 is a deficient number, since it is larger than the sum of its proper divisors (126875751544).

134669878256 is a wasteful number, since it uses less digits than its factorization.

134669878256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20088416 (or 20088410 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 65.

The spelling of 134669878256 in words is "one hundred thirty-four billion, six hundred sixty-nine million, eight hundred seventy-eight thousand, two hundred fifty-six".