30421172364 has 96 divisors (see below), whose sum is σ = 81587810304. Its totient is φ = 8732032320.

The previous prime is 30421172357. The next prime is 30421172399. The reversal of 30421172364 is 46327112403.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264067 + ... + 361349.

It is an arithmetic number, because the mean of its divisors is an integer number (849873024).

Almost surely, 2^30421172364 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 30421172364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40793905152).

30421172364 is an abundant number, since it is smaller than the sum of its proper divisors (51166637940).

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

30421172364 is a wasteful number, since it uses less digits than its factorization.

30421172364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97427 (or 97425 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

Adding to 30421172364 its reverse (46327112403), we get a palindrome (76748284767).

The spelling of 30421172364 in words is "thirty billion, four hundred twenty-one million, one hundred seventy-two thousand, three hundred sixty-four".