48789861689 has 2 divisors, whose sum is σ = 48789861690. Its totient is φ = 48789861688.

The previous prime is 48789861611. The next prime is 48789861713. The reversal of 48789861689 is 98616898784.

It is a happy number.

48789861689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47661439225 + 1128422464 = 218315^2 + 33592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48789861689 is a prime.

It is not a weakly prime, because it can be changed into another prime (48789864689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24394930844 + 24394930845.

It is an arithmetic number, because the mean of its divisors is an integer number (24394930845).

Almost surely, 2^48789861689 is an apocalyptic number.

It is an amenable number.

48789861689 is a deficient number, since it is larger than the sum of its proper divisors (1).

48789861689 is an equidigital number, since it uses as much as digits as its factorization.

48789861689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 334430208, while the sum is 74.

The spelling of 48789861689 in words is "forty-eight billion, seven hundred eighty-nine million, eight hundred sixty-one thousand, six hundred eighty-nine".