3953485081 has 12 divisors (see below), whose sum is σ = 4952718372. Its totient is φ = 3128031648.

The previous prime is 3953485073. The next prime is 3953485139. The reversal of 3953485081 is 1805843593.

It can be written as a sum of positive squares in 2 ways, for example, as 1969584400 + 1983900681 = 44380^2 + 44541^2 .

It is not a de Polignac number, because 3953485081 - 2³ = 3953485073 is a prime.

It is a super-2 number, since 2×3953485081² = 31260088571379153122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3953485381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3102570 + ... + 3103843.

It is an arithmetic number, because the mean of its divisors is an integer number (412726531).

Almost surely, 2^3953485081 is an apocalyptic number.

It is an amenable number.

3953485081 is a deficient number, since it is larger than the sum of its proper divisors (999233291).

3953485081 is a wasteful number, since it uses less digits than its factorization.

3953485081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206440 (or 6206433 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 3953485081 is about 62876.7451527192. The cubic root of 3953485081 is about 1581.2238929465.

The spelling of 3953485081 in words is "three billion, nine hundred fifty-three million, four hundred eighty-five thousand, eighty-one".