134235886820 has 48 divisors (see below), whose sum is σ = 330023852928. Its totient is φ = 44901200640.

The previous prime is 134235886819. The next prime is 134235886831. The reversal of 134235886820 is 28688532431.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11687282 + ... + 11698761.

It is an arithmetic number, because the mean of its divisors is an integer number (6875496936).

Almost surely, 2^134235886820 is an apocalyptic number.

134235886820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134235886820 is an abundant number, since it is smaller than the sum of its proper divisors (195787966108).

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

134235886820 is a wasteful number, since it uses less digits than its factorization.

134235886820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23386100 (or 23386098 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 134235886820 in words is "one hundred thirty-four billion, two hundred thirty-five million, eight hundred eighty-six thousand, eight hundred twenty".