134817123870 has 128 divisors (see below), whose sum is σ = 422364257280. Its totient is φ = 30168858240.

The previous prime is 134817123869. The next prime is 134817123877. The reversal of 134817123870 is 78321718431.

134817123870 is a `hidden beast` number, since 1 + 3 + 481 + 71 + 2 + 38 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134817123877) 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, 1707274 + ... + 1784493.

It is an arithmetic number, because the mean of its divisors is an integer number (3299720760).

Almost surely, 2^134817123870 is an apocalyptic number.

134817123870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134817123870 is an abundant number, since it is smaller than the sum of its proper divisors (287547133410).

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

134817123870 is a wasteful number, since it uses less digits than its factorization.

134817123870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491807 (or 3491801 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 134817123870 in words is "one hundred thirty-four billion, eight hundred seventeen million, one hundred twenty-three thousand, eight hundred seventy".