30355725642 has 32 divisors (see below), whose sum is σ = 66243502080. Its totient is φ = 9196923120.

The previous prime is 30355725607. The next prime is 30355725661. The reversal of 30355725642 is 24652755303.

30355725642 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 30355725594 and 30355725603.

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, 321409 + ... + 404987.

It is an arithmetic number, because the mean of its divisors is an integer number (2070109440).

Almost surely, 2^30355725642 is an apocalyptic number.

30355725642 is an abundant number, since it is smaller than the sum of its proper divisors (35887776438).

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

30355725642 is a wasteful number, since it uses less digits than its factorization.

30355725642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89098.

The product of its (nonzero) digits is 756000, while the sum is 42.

The spelling of 30355725642 in words is "thirty billion, three hundred fifty-five million, seven hundred twenty-five thousand, six hundred forty-two".