48218136641 has 2 divisors, whose sum is σ = 48218136642. Its totient is φ = 48218136640.

The previous prime is 48218136623. The next prime is 48218136661. The reversal of 48218136641 is 14663181284.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27198936241 + 21019200400 = 164921^2 + 144980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48218136641 is a prime.

It is a super-2 number, since 2×48218136641² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 48218136592 and 48218136601.

It is not a weakly prime, because it can be changed into another prime (48218136601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24109068320 + 24109068321.

It is an arithmetic number, because the mean of its divisors is an integer number (24109068321).

Almost surely, 2^48218136641 is an apocalyptic number.

It is an amenable number.

48218136641 is a deficient number, since it is larger than the sum of its proper divisors (1).

48218136641 is an equidigital number, since it uses as much as digits as its factorization.

48218136641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The spelling of 48218136641 in words is "forty-eight billion, two hundred eighteen million, one hundred thirty-six thousand, six hundred forty-one".