4945759281 has 24 divisors (see below), whose sum is σ = 7342643880. Its totient is φ = 3206649600.

The previous prime is 4945759277. The next prime is 4945759283. The reversal of 4945759281 is 1829575494.

It is a happy number.

4945759281 is a `hidden beast` number, since 4 + 9 + 45 + 7 + 592 + 8 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 762256881 + 4183502400 = 27609^2 + 64680^2 .

It is not a de Polignac number, because 4945759281 - 2² = 4945759277 is a prime.

It is a super-2 number, since 2×4945759281² = 48921069731195273922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4945759283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1750 + ... + 99471.

It is an arithmetic number, because the mean of its divisors is an integer number (305943495).

Almost surely, 2^4945759281 is an apocalyptic number.

It is an amenable number.

4945759281 is a deficient number, since it is larger than the sum of its proper divisors (2396884599).

4945759281 is a wasteful number, since it uses less digits than its factorization.

4945759281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101377 (or 101374 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 4945759281 is about 70326.0924621865. The cubic root of 4945759281 is about 1703.7700966444.

The spelling of 4945759281 in words is "four billion, nine hundred forty-five million, seven hundred fifty-nine thousand, two hundred eighty-one".