134878271646 has 16 divisors (see below), whose sum is σ = 269781814800. Its totient is φ = 44955211968.

The previous prime is 134878271519. The next prime is 134878271653. The reversal of 134878271646 is 646172878431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983241 + ... + 1111988.

It is an arithmetic number, because the mean of its divisors is an integer number (16861363425).

Almost surely, 2^134878271646 is an apocalyptic number.

134878271646 is an abundant number, since it is smaller than the sum of its proper divisors (134903543154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134878271646 is a wasteful number, since it uses less digits than its factorization.

134878271646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105963.

The product of its digits is 10838016, while the sum is 57.

The spelling of 134878271646 in words is "one hundred thirty-four billion, eight hundred seventy-eight million, two hundred seventy-one thousand, six hundred forty-six".