30030780805 has 4 divisors (see below), whose sum is σ = 36036936972. Its totient is φ = 24024624640.

The previous prime is 30030780779. The next prime is 30030780817. The reversal of 30030780805 is 50808703003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6574939396 + 23455841409 = 81086^2 + 153153^2 .

It is not a de Polignac number, because 30030780805 - 2¹⁵ = 30030748037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003078076 + ... + 3003078085.

It is an arithmetic number, because the mean of its divisors is an integer number (9009234243).

Almost surely, 2^30030780805 is an apocalyptic number.

It is an amenable number.

30030780805 is a deficient number, since it is larger than the sum of its proper divisors (6006156167).

30030780805 is an equidigital number, since it uses as much as digits as its factorization.

30030780805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006156166.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 30030780805 in words is "thirty billion, thirty million, seven hundred eighty thousand, eight hundred five".