4951212569 has 2 divisors, whose sum is σ = 4951212570. Its totient is φ = 4951212568.

The previous prime is 4951212557. The next prime is 4951212571. The reversal of 4951212569 is 9652121594.

4951212569 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3336217600 + 1614994969 = 57760^2 + 40187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4951212569 is a prime.

It is a super-2 number, since 2×4951212569² = 49029011806847159522, which contains 22 as substring.

Together with 4951212571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4951292569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475606284 + 2475606285.

It is an arithmetic number, because the mean of its divisors is an integer number (2475606285).

Almost surely, 2^4951212569 is an apocalyptic number.

It is an amenable number.

4951212569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4951212569 is an equidigital number, since it uses as much as digits as its factorization.

4951212569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 44.

The square root of 4951212569 is about 70364.8532223297. The cubic root of 4951212569 is about 1704.3960697067.

The spelling of 4951212569 in words is "four billion, nine hundred fifty-one million, two hundred twelve thousand, five hundred sixty-nine".