30724638536 has 16 divisors (see below), whose sum is σ = 57614693040. Its totient is φ = 15360720400.

The previous prime is 30724638499. The next prime is 30724638551. The reversal of 30724638536 is 63583642703.

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 3 ways as a sum of consecutive naturals, for example, 116126 + ... + 273741.

It is an arithmetic number, because the mean of its divisors is an integer number (3600918315).

Almost surely, 2^30724638536 is an apocalyptic number.

It is an amenable number.

30724638536 is a deficient number, since it is larger than the sum of its proper divisors (26890054504).

30724638536 is a wasteful number, since it uses less digits than its factorization.

30724638536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399724 (or 399720 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 30724638536 in words is "thirty billion, seven hundred twenty-four million, six hundred thirty-eight thousand, five hundred thirty-six".