30372321652 has 24 divisors (see below), whose sum is σ = 58725003456. Its totient is φ = 13671427968.

The previous prime is 30372321619. The next prime is 30372321697. The reversal of 30372321652 is 25612327303.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9708258 + ... + 9711385.

It is an arithmetic number, because the mean of its divisors is an integer number (2446875144).

Almost surely, 2^30372321652 is an apocalyptic number.

It is an amenable number.

30372321652 is a deficient number, since it is larger than the sum of its proper divisors (28352681804).

30372321652 is a wasteful number, since it uses less digits than its factorization.

30372321652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19419687 (or 19419685 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

Adding to 30372321652 its reverse (25612327303), we get a palindrome (55984648955).

The spelling of 30372321652 in words is "thirty billion, three hundred seventy-two million, three hundred twenty-one thousand, six hundred fifty-two".