30948784127977 has 2 divisors, whose sum is σ = 30948784127978. Its totient is φ = 30948784127976.

The previous prime is 30948784127939. The next prime is 30948784128001. The reversal of 30948784127977 is 77972148784903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30934019690896 + 14764437081 = 5561836^2 + 121509^2 .

It is an emirp because it is prime and its reverse (77972148784903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30948784127977 - 2³⁹ = 30399028314089 is a prime.

It is a super-2 number, since 2×30948784127977² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30948784127917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15474392063988 + 15474392063989.

It is an arithmetic number, because the mean of its divisors is an integer number (15474392063989).

Almost surely, 2^{30948784127977} is an apocalyptic number.

It is an amenable number.

30948784127977 is a deficient number, since it is larger than the sum of its proper divisors (1).

30948784127977 is an equidigital number, since it uses as much as digits as its factorization.

30948784127977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1194891264, while the sum is 76.

The spelling of 30948784127977 in words is "thirty trillion, nine hundred forty-eight billion, seven hundred eighty-four million, one hundred twenty-seven thousand, nine hundred seventy-seven".