30734573136 has 60 divisors (see below), whose sum is σ = 81108933696. Its totient is φ = 10024165440.

The previous prime is 30734573131. The next prime is 30734573153. The reversal of 30734573136 is 63137543703.

It is a super-2 number, since 2×30734573136² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30734573131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8325051 + ... + 8328741.

Almost surely, 2^30734573136 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 30734573136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40554466848).

30734573136 is an abundant number, since it is smaller than the sum of its proper divisors (50374360560).

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

30734573136 is an frugal number, since it uses more digits than its factorization.

30734573136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440 (or 3743 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 42.

The spelling of 30734573136 in words is "thirty billion, seven hundred thirty-four million, five hundred seventy-three thousand, one hundred thirty-six".