48811390489 has 3 divisors (see below), whose sum is σ = 48811611423. Its totient is φ = 48811169556.

The previous prime is 48811390417. The next prime is 48811390501. The reversal of 48811390489 is 98409311884.

It is a happy number.

The square root of 48811390489 is 220933.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 18288505225 + 30522885264 = 135235^2 + 174708^2 .

It is not a de Polignac number, because 48811390489 - 2³⁵ = 14451652121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48811390409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 110467 + ... + 331399.

It is an arithmetic number, because the mean of its divisors is an integer number (16270537141).

Almost surely, 2^48811390489 is an apocalyptic number.

48811390489 is the 220933-rd square number.

48811390489 is the 110467-th centered octagonal number.

It is an amenable number.

48811390489 is a deficient number, since it is larger than the sum of its proper divisors (220934).

48811390489 is an frugal number, since it uses more digits than its factorization.

48811390489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441866 (or 220933 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 48811390489 in words is "forty-eight billion, eight hundred eleven million, three hundred ninety thousand, four hundred eighty-nine".