492657179238 has 160 divisors (see below), whose sum is σ = 1285000485120. Its totient is φ = 138158032320.

The previous prime is 492657179227. The next prime is 492657179279. The reversal of 492657179238 is 832971756294.

492657179238 is a `hidden beast` number, since 4 + 9 + 26 + 571 + 7 + 9 + 2 + 38 = 666.

It is a super-2 number, since 2×492657179238² (a number of 24 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 45691408 + ... + 45702188.

It is an arithmetic number, because the mean of its divisors is an integer number (8031253032).

Almost surely, 2^492657179238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 492657179238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642500242560).

492657179238 is an abundant number, since it is smaller than the sum of its proper divisors (792343305882).

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

492657179238 is a wasteful number, since it uses less digits than its factorization.

492657179238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11544 (or 11535 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 492657179238 in words is "four hundred ninety-two billion, six hundred fifty-seven million, one hundred seventy-nine thousand, two hundred thirty-eight".