5639779357 has 2 divisors, whose sum is σ = 5639779358. Its totient is φ = 5639779356.

The previous prime is 5639779351. The next prime is 5639779403. The reversal of 5639779357 is 7539779365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5053219396 + 586559961 = 71086^2 + 24219^2 .

It is a cyclic number.

It is not a de Polignac number, because 5639779357 - 2³ = 5639779349 is a prime.

It is a super-2 number, since 2×5639779357² = 63614222391286666898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5639779295 and 5639779304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5639779351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819889678 + 2819889679.

It is an arithmetic number, because the mean of its divisors is an integer number (2819889679).

Almost surely, 2^5639779357 is an apocalyptic number.

It is an amenable number.

5639779357 is a deficient number, since it is larger than the sum of its proper divisors (1).

5639779357 is an equidigital number, since it uses as much as digits as its factorization.

5639779357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37507050, while the sum is 61.

The square root of 5639779357 is about 75098.4644117308. The cubic root of 5639779357 is about 1780.0028781042.

It can be divided in two parts, 5639 and 779357, that added together give a square (784996 = 886²).

The spelling of 5639779357 in words is "five billion, six hundred thirty-nine million, seven hundred seventy-nine thousand, three hundred fifty-seven".