30129881760 has 576 divisors, whose sum is σ = 117308580480. Its totient is φ = 6975037440.

The previous prime is 30129881741. The next prime is 30129881767. The reversal of 30129881760 is 6718892103.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (30129881767) 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 95 ways as a sum of consecutive naturals, for example, 49151214 + ... + 49151826.

It is an arithmetic number, because the mean of its divisors is an integer number (203660730).

Almost surely, 2^30129881760 is an apocalyptic number.

30129881760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30129881760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58654290240).

30129881760 is an abundant number, since it is smaller than the sum of its proper divisors (87178698720).

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

30129881760 is a wasteful number, since it uses less digits than its factorization.

30129881760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 30129881760 in words is "thirty billion, one hundred twenty-nine million, eight hundred eighty-one thousand, seven hundred sixty".