5211711867 has 4 divisors (see below), whose sum is σ = 6948949160. Its totient is φ = 3474474576.

The previous prime is 5211711863. The next prime is 5211711871. The reversal of 5211711867 is 7681171125.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5211711863) and next prime (5211711871).

It is not a de Polignac number, because 5211711867 - 2² = 5211711863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5211711863) 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, 868618642 + ... + 868618647.

It is an arithmetic number, because the mean of its divisors is an integer number (1737237290).

Almost surely, 2^5211711867 is an apocalyptic number.

5211711867 is a deficient number, since it is larger than the sum of its proper divisors (1737237293).

5211711867 is a wasteful number, since it uses less digits than its factorization.

5211711867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737237292.

The product of its digits is 23520, while the sum is 39.

The square root of 5211711867 is about 72192.1870218655. The cubic root of 5211711867 is about 1733.7779119681. Note that the first 3 decimals are identical.

The spelling of 5211711867 in words is "five billion, two hundred eleven million, seven hundred eleven thousand, eight hundred sixty-seven".