5640162839 has 4 divisors (see below), whose sum is σ = 5660975520. Its totient is φ = 5619350160.

The previous prime is 5640162809. The next prime is 5640162887. The reversal of 5640162839 is 9382610465.

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

It is a cyclic number.

It is not a de Polignac number, because 5640162839 - 2¹⁶ = 5640097303 is a prime.

It is a super-2 number, since 2×5640162839² = 63622873700873079842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5640162839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640162809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10405934 + ... + 10406475.

It is an arithmetic number, because the mean of its divisors is an integer number (1415243880).

Almost surely, 2^5640162839 is an apocalyptic number.

5640162839 is a deficient number, since it is larger than the sum of its proper divisors (20812681).

5640162839 is a wasteful number, since it uses less digits than its factorization.

5640162839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812680.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 5640162839 is about 75101.0175630131. The cubic root of 5640162839 is about 1780.0432215024.

The spelling of 5640162839 in words is "five billion, six hundred forty million, one hundred sixty-two thousand, eight hundred thirty-nine".