48818781 has 60 divisors (see below), whose sum is σ = 85164156. Its totient is φ = 27751680.

The previous prime is 48818773. The next prime is 48818789. The reversal of 48818781 is 18781884.

It is an interprime number because it is at equal distance from previous prime (48818773) and next prime (48818789).

It can be written as a sum of positive squares in 2 ways, for example, as 42693156 + 6125625 = 6534^2 + 2475^2 .

It is not a de Polignac number, because 48818781 - 2³ = 48818773 is a prime.

It is a super-2 number, since 2×48818781² = 4766546756651922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48818789) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 166471 + ... + 166763.

Almost surely, 2^48818781 is an apocalyptic number.

It is an amenable number.

48818781 is a deficient number, since it is larger than the sum of its proper divisors (36345375).

48818781 is a wasteful number, since it uses less digits than its factorization.

48818781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 324 counting only the distinct ones).

The product of its digits is 114688, while the sum is 45.

The square root of 48818781 is about 6987.0437954832. The cubic root of 48818781 is about 365.4789009973.

The spelling of 48818781 in words is "forty-eight million, eight hundred eighteen thousand, seven hundred eighty-one".