134868394815 has 32 divisors (see below), whose sum is σ = 269036176896. Its totient is φ = 56049202560.

The previous prime is 134868394769. The next prime is 134868394853. The reversal of 134868394815 is 518493868431.

It is a happy number.

It is not a de Polignac number, because 134868394815 - 2¹⁵ = 134868362047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58383432 + ... + 58385741.

It is an arithmetic number, because the mean of its divisors is an integer number (8407380528).

Almost surely, 2^134868394815 is an apocalyptic number.

134868394815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

134868394815 is a deficient number, since it is larger than the sum of its proper divisors (134167782081).

134868394815 is a wasteful number, since it uses less digits than its factorization.

134868394815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116769199.

The product of its digits is 19906560, while the sum is 60.

The spelling of 134868394815 in words is "one hundred thirty-four billion, eight hundred sixty-eight million, three hundred ninety-four thousand, eight hundred fifteen".