48781680469 has 2 divisors, whose sum is σ = 48781680470. Its totient is φ = 48781680468.

The previous prime is 48781680449. The next prime is 48781680491. The reversal of 48781680469 is 96408618784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34118892369 + 14662788100 = 184713^2 + 121090^2 .

It is a cyclic number.

It is not a de Polignac number, because 48781680469 - 2¹⁹ = 48781156181 is a prime.

It is a super-2 number, since 2×48781680469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48781680449) 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, 24390840234 + 24390840235.

It is an arithmetic number, because the mean of its divisors is an integer number (24390840235).

Almost surely, 2^48781680469 is an apocalyptic number.

It is an amenable number.

48781680469 is a deficient number, since it is larger than the sum of its proper divisors (1).

48781680469 is an equidigital number, since it uses as much as digits as its factorization.

48781680469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 48781680469 in words is "forty-eight billion, seven hundred eighty-one million, six hundred eighty thousand, four hundred sixty-nine".