164826746838 has 48 divisors (see below), whose sum is σ = 386015063616. Its totient is φ = 50528759040.

The previous prime is 164826746827. The next prime is 164826746849. The reversal of 164826746838 is 838647628461.

164826746838 is a `hidden beast` number, since 1 + 6 + 4 + 82 + 67 + 468 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (164826746827) and next prime (164826746849).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1236195 + ... + 1363022.

It is an arithmetic number, because the mean of its divisors is an integer number (8041980492).

Almost surely, 2^164826746838 is an apocalyptic number.

164826746838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

164826746838 is an abundant number, since it is smaller than the sum of its proper divisors (221188316778).

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

164826746838 is a wasteful number, since it uses less digits than its factorization.

164826746838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599509 (or 2599506 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 63.

The spelling of 164826746838 in words is "one hundred sixty-four billion, eight hundred twenty-six million, seven hundred forty-six thousand, eight hundred thirty-eight".