30126878580761 has 2 divisors, whose sum is σ = 30126878580762. Its totient is φ = 30126878580760.

The previous prime is 30126878580749. The next prime is 30126878580767. The reversal of 30126878580761 is 16708587862103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30012647424400 + 114231156361 = 5478380^2 + 337981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30126878580761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30126878580694 and 30126878580703.

It is not a weakly prime, because it can be changed into another prime (30126878580767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15063439290380 + 15063439290381.

It is an arithmetic number, because the mean of its divisors is an integer number (15063439290381).

Almost surely, 2^{30126878580761} is an apocalyptic number.

It is an amenable number.

30126878580761 is a deficient number, since it is larger than the sum of its proper divisors (1).

30126878580761 is an equidigital number, since it uses as much as digits as its factorization.

30126878580761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 30126878580761 in words is "thirty trillion, one hundred twenty-six billion, eight hundred seventy-eight million, five hundred eighty thousand, seven hundred sixty-one".