48854065781 has 2 divisors, whose sum is σ = 48854065782. Its totient is φ = 48854065780.

The previous prime is 48854065697. The next prime is 48854065807. The reversal of 48854065781 is 18756045884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46314913681 + 2539152100 = 215209^2 + 50390^2 .

It is a cyclic number.

It is not a de Polignac number, because 48854065781 - 2²⁶ = 48786956917 is a prime.

It is a super-2 number, since 2×48854065781² (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 (48854065081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24427032890 + 24427032891.

It is an arithmetic number, because the mean of its divisors is an integer number (24427032891).

Almost surely, 2^48854065781 is an apocalyptic number.

It is an amenable number.

48854065781 is a deficient number, since it is larger than the sum of its proper divisors (1).

48854065781 is an equidigital number, since it uses as much as digits as its factorization.

48854065781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8601600, while the sum is 56.

The spelling of 48854065781 in words is "forty-eight billion, eight hundred fifty-four million, sixty-five thousand, seven hundred eighty-one".