48781680449 has 2 divisors, whose sum is σ = 48781680450. Its totient is φ = 48781680448.

The previous prime is 48781680401. The next prime is 48781680469. The reversal of 48781680449 is 94408618784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48529887025 + 251793424 = 220295^2 + 15868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48781680449 is a prime.

It is not a weakly prime, because it can be changed into another prime (48781680469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24390840224 + 24390840225.

It is an arithmetic number, because the mean of its divisors is an integer number (24390840225).

Almost surely, 2^48781680449 is an apocalyptic number.

It is an amenable number.

48781680449 is a deficient number, since it is larger than the sum of its proper divisors (1).

48781680449 is an equidigital number, since it uses as much as digits as its factorization.

48781680449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 48781680449 in words is "forty-eight billion, seven hundred eighty-one million, six hundred eighty thousand, four hundred forty-nine".