5642913905 has 4 divisors (see below), whose sum is σ = 6771496692. Its totient is φ = 4514331120.

The previous prime is 5642913893. The next prime is 5642913907. The reversal of 5642913905 is 5093192465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 892396129 + 4750517776 = 29873^2 + 68924^2 .

It is not a de Polignac number, because 5642913905 - 2²⁰ = 5641865329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5642913907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564291386 + ... + 564291395.

It is an arithmetic number, because the mean of its divisors is an integer number (1692874173).

Almost surely, 2^5642913905 is an apocalyptic number.

It is an amenable number.

5642913905 is a deficient number, since it is larger than the sum of its proper divisors (1128582787).

5642913905 is a wasteful number, since it uses less digits than its factorization.

5642913905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128582786.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 5642913905 is about 75119.3311005895. The cubic root of 5642913905 is about 1780.3325878762.

The spelling of 5642913905 in words is "five billion, six hundred forty-two million, nine hundred thirteen thousand, nine hundred five".