4971138859 has 4 divisors (see below), whose sum is σ = 4973885640. Its totient is φ = 4968392080.

The previous prime is 4971138847. The next prime is 4971138881. The reversal of 4971138859 is 9588311794.

It is a happy number.

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 4971138859 - 2¹⁷ = 4971007787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4971138839) 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, 1370674 + ... + 1374295.

It is an arithmetic number, because the mean of its divisors is an integer number (1243471410).

Almost surely, 2^4971138859 is an apocalyptic number.

4971138859 is a deficient number, since it is larger than the sum of its proper divisors (2746781).

4971138859 is a wasteful number, since it uses less digits than its factorization.

4971138859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746780.

The product of its digits is 2177280, while the sum is 55.

The square root of 4971138859 is about 70506.3036827205. The cubic root of 4971138859 is about 1706.6794720558.

The spelling of 4971138859 in words is "four billion, nine hundred seventy-one million, one hundred thirty-eight thousand, eight hundred fifty-nine".