4050081613 has 4 divisors (see below), whose sum is σ = 4107125088. Its totient is φ = 3993038140.

The previous prime is 4050081601. The next prime is 4050081617. The reversal of 4050081613 is 3161800504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4050081613 is a prime.

It is a super-2 number, since 2×4050081613² = 32806322143921363538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4050081617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28521631 + ... + 28521772.

It is an arithmetic number, because the mean of its divisors is an integer number (1026781272).

Almost surely, 2^4050081613 is an apocalyptic number.

It is an amenable number.

4050081613 is a deficient number, since it is larger than the sum of its proper divisors (57043475).

4050081613 is an equidigital number, since it uses as much as digits as its factorization.

4050081613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57043474.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 4050081613 is about 63640.2515158449. The cubic root of 4050081613 is about 1593.9985607086.

The spelling of 4050081613 in words is "four billion, fifty million, eighty-one thousand, six hundred thirteen".