30309728738106 has 32 divisors (see below), whose sum is σ = 61379836273728. Its totient is φ = 9977302707840.

The previous prime is 30309728738071. The next prime is 30309728738117. The reversal of 30309728738106 is 60183782790303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98545635 + ... + 98852726.

It is an arithmetic number, because the mean of its divisors is an integer number (1918119883554).

Almost surely, 2^{30309728738106} is an apocalyptic number.

30309728738106 is an abundant number, since it is smaller than the sum of its proper divisors (31070107535622).

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

30309728738106 is a wasteful number, since it uses less digits than its factorization.

30309728738106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197398686.

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 30309728738106 in words is "thirty trillion, three hundred nine billion, seven hundred twenty-eight million, seven hundred thirty-eight thousand, one hundred six".