5647878013 has 2 divisors, whose sum is σ = 5647878014. Its totient is φ = 5647878012.

The previous prime is 5647878007. The next prime is 5647878017. The reversal of 5647878013 is 3108787465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5647071609 + 806404 = 75147^2 + 898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5647878013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5647878017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2823939006 + 2823939007.

It is an arithmetic number, because the mean of its divisors is an integer number (2823939007).

Almost surely, 2^5647878013 is an apocalyptic number.

It is an amenable number.

5647878013 is a deficient number, since it is larger than the sum of its proper divisors (1).

5647878013 is an equidigital number, since it uses as much as digits as its factorization.

5647878013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 5647878013 is about 75152.3653187310. The cubic root of 5647878013 is about 1780.8544915776.

The spelling of 5647878013 in words is "five billion, six hundred forty-seven million, eight hundred seventy-eight thousand, thirteen".