134645579838 has 96 divisors (see below), whose sum is σ = 363795644160. Its totient is φ = 34965406080.

The previous prime is 134645579833. The next prime is 134645579843. The reversal of 134645579838 is 838975546431.

134645579838 is a `hidden beast` number, since 1 + 3 + 46 + 4 + 557 + 9 + 8 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (134645579833) and next prime (134645579843).

It is a super-2 number, since 2×134645579838² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134645579833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9873981 + ... + 9887607.

It is an arithmetic number, because the mean of its divisors is an integer number (3789537960).

Almost surely, 2^134645579838 is an apocalyptic number.

134645579838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

134645579838 is an abundant number, since it is smaller than the sum of its proper divisors (229150064322).

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

134645579838 is a wasteful number, since it uses less digits than its factorization.

134645579838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20782 (or 20779 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 134645579838 in words is "one hundred thirty-four billion, six hundred forty-five million, five hundred seventy-nine thousand, eight hundred thirty-eight".