134284867820 has 24 divisors (see below), whose sum is σ = 282107674800. Its totient is φ = 53693099072.

The previous prime is 134284867789. The next prime is 134284867823. The reversal of 134284867820 is 28768482431.

It is not an unprimeable number, because it can be changed into a prime (134284867823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250135 + ... + 1353294.

It is an arithmetic number, because the mean of its divisors is an integer number (11754486450).

Almost surely, 2^134284867820 is an apocalyptic number.

134284867820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134284867820 is an abundant number, since it is smaller than the sum of its proper divisors (147822806980).

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

134284867820 is a wasteful number, since it uses less digits than its factorization.

134284867820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606017 (or 2606015 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 134284867820 in words is "one hundred thirty-four billion, two hundred eighty-four million, eight hundred sixty-seven thousand, eight hundred twenty".