5657979385 has 8 divisors (see below), whose sum is σ = 6789999816. Its totient is φ = 4526100480.

The previous prime is 5657979361. The next prime is 5657979409. The reversal of 5657979385 is 5839797565.

It is an interprime number because it is at equal distance from previous prime (5657979361) and next prime (5657979409).

It can be written as a sum of positive squares in 4 ways, for example, as 56355049 + 5601624336 = 7507^2 + 74844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5657979385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98937 + ... + 145273.

It is an arithmetic number, because the mean of its divisors is an integer number (848749977).

Almost surely, 2^5657979385 is an apocalyptic number.

It is an amenable number.

5657979385 is a deficient number, since it is larger than the sum of its proper divisors (1132020431).

5657979385 is a wasteful number, since it uses less digits than its factorization.

5657979385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70763.

The product of its digits is 71442000, while the sum is 64.

The square root of 5657979385 is about 75219.5412442804. The cubic root of 5657979385 is about 1781.9155602753.

The spelling of 5657979385 in words is "five billion, six hundred fifty-seven million, nine hundred seventy-nine thousand, three hundred eighty-five".