30755537232 has 160 divisors (see below), whose sum is σ = 93374952192. Its totient is φ = 8538918912.

The previous prime is 30755537209. The next prime is 30755537237. The reversal of 30755537232 is 23273555703.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30755537237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18560148 + ... + 18561804.

Almost surely, 2^30755537232 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 30755537232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46687476096).

30755537232 is an abundant number, since it is smaller than the sum of its proper divisors (62619414960).

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

30755537232 is a wasteful number, since it uses less digits than its factorization.

30755537232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 42.

The spelling of 30755537232 in words is "thirty billion, seven hundred fifty-five million, five hundred thirty-seven thousand, two hundred thirty-two".