301731728742 has 12 divisors (see below), whose sum is σ = 653752078980. Its totient is φ = 100577242908.

The previous prime is 301731728729. The next prime is 301731728743. The reversal of 301731728742 is 247827137103.

301731728742 is a `hidden beast` number, since 3 + 0 + 17 + 317 + 287 + 42 = 666.

It is a super-2 number, since 2×301731728742² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301731728743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8381436892 + ... + 8381436927.

It is an arithmetic number, because the mean of its divisors is an integer number (54479339915).

Almost surely, 2^301731728742 is an apocalyptic number.

301731728742 is an abundant number, since it is smaller than the sum of its proper divisors (352020350238).

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

301731728742 is a wasteful number, since it uses less digits than its factorization.

301731728742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16762873827 (or 16762873824 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 301731728742 in words is "three hundred one billion, seven hundred thirty-one million, seven hundred twenty-eight thousand, seven hundred forty-two".