4951211117 has 4 divisors (see below), whose sum is σ = 4951373856. Its totient is φ = 4951048380.

The previous prime is 4951211059. The next prime is 4951211119. The reversal of 4951211117 is 7111121594.

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 a de Polignac number, because none of the positive numbers 2^k-4951211117 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 (4951211119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20609 + ... + 101622.

It is an arithmetic number, because the mean of its divisors is an integer number (1237843464).

Almost surely, 2^4951211117 is an apocalyptic number.

It is an amenable number.

4951211117 is a deficient number, since it is larger than the sum of its proper divisors (162739).

4951211117 is a wasteful number, since it uses less digits than its factorization.

4951211117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162738.

The product of its digits is 2520, while the sum is 32.

The square root of 4951211117 is about 70364.8429046779. The cubic root of 4951211117 is about 1704.3959030954.

The spelling of 4951211117 in words is "four billion, nine hundred fifty-one million, two hundred eleven thousand, one hundred seventeen".