30205870993 has 8 divisors (see below), whose sum is σ = 30884898240. Its totient is φ = 29532774480.

The previous prime is 30205870991. The next prime is 30205871027. The reversal of 30205870993 is 39907850203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30205870993 - 2¹ = 30205870991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30205870991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472383 + ... + 1492756.

It is an arithmetic number, because the mean of its divisors is an integer number (3860612280).

Almost surely, 2^30205870993 is an apocalyptic number.

It is an amenable number.

30205870993 is a deficient number, since it is larger than the sum of its proper divisors (679027247).

30205870993 is a wasteful number, since it uses less digits than its factorization.

30205870993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965367.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 30205870993 in words is "thirty billion, two hundred five million, eight hundred seventy thousand, nine hundred ninety-three".