30727137500 has 72 divisors (see below), whose sum is σ = 70134198624. Its totient is φ = 11756360000.

The previous prime is 30727137491. The next prime is 30727137503. The reversal of 30727137500 is 573172703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30727137503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234062 + ... + 340938.

It is an arithmetic number, because the mean of its divisors is an integer number (974086092).

Almost surely, 2^30727137500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30727137500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35067099312).

30727137500 is an abundant number, since it is smaller than the sum of its proper divisors (39407061124).

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

30727137500 is a wasteful number, since it uses less digits than its factorization.

30727137500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106929 (or 106907 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 35.

The spelling of 30727137500 in words is "thirty billion, seven hundred twenty-seven million, one hundred thirty-seven thousand, five hundred".