30048278420161 has 27 divisors (see below), whose sum is σ = 31171587546729. Its totient is φ = 28965113616192.

The previous prime is 30048278420137. The next prime is 30048278420203. The reversal of 30048278420161 is 16102487284003.

The square root of 30048278420161 is 5481631.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4290826387761 + 25757452032400 = 2071431^2 + 5075180^2 .

It is not a de Polignac number, because 30048278420161 - 2¹⁷ = 30048278289089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30048278420101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17141059261 + ... + 17141061013.

Almost surely, 2^{30048278420161} is an apocalyptic number.

30048278420161 is the 5481631-st square number.

30048278420161 is the 2740816-th centered octagonal number.

It is an amenable number.

30048278420161 is a deficient number, since it is larger than the sum of its proper divisors (1123309126568).

30048278420161 is an frugal number, since it uses more digits than its factorization.

30048278420161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 30048278420161 in words is "thirty trillion, forty-eight billion, two hundred seventy-eight million, four hundred twenty thousand, one hundred sixty-one".