4971663917 has 4 divisors (see below), whose sum is σ = 5423633376. Its totient is φ = 4519694460.

The previous prime is 4971663859. The next prime is 4971663919. The reversal of 4971663917 is 7193661794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4971663917 - 2¹⁰ = 4971662893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971663919) 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, 225984713 + ... + 225984734.

It is an arithmetic number, because the mean of its divisors is an integer number (1355908344).

Almost surely, 2^4971663917 is an apocalyptic number.

It is an amenable number.

4971663917 is a deficient number, since it is larger than the sum of its proper divisors (451969459).

4971663917 is a wasteful number, since it uses less digits than its factorization.

4971663917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451969458.

The product of its digits is 1714608, while the sum is 53.

The square root of 4971663917 is about 70510.0270670775. The cubic root of 4971663917 is about 1706.7395571582.

The spelling of 4971663917 in words is "four billion, nine hundred seventy-one million, six hundred sixty-three thousand, nine hundred seventeen".