4591051856 has 20 divisors (see below), whose sum is σ = 8946585492. Its totient is φ = 2282255616.

The previous prime is 4591051837. The next prime is 4591051877. The reversal of 4591051856 is 6581501954.

It can be written as a sum of positive squares in 2 ways, for example, as 2903485456 + 1687566400 = 53884^2 + 41080^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826541 + ... + 832076.

Almost surely, 2^4591051856 is an apocalyptic number.

It is an amenable number.

4591051856 is a deficient number, since it is larger than the sum of its proper divisors (4355533636).

4591051856 is a wasteful number, since it uses less digits than its factorization.

4591051856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658798 (or 1658792 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 44.

The square root of 4591051856 is about 67757.3011268896. The cubic root of 4591051856 is about 1662.0244155389.

The spelling of 4591051856 in words is "four billion, five hundred ninety-one million, fifty-one thousand, eight hundred fifty-six".