5121862217 has 4 divisors (see below), whose sum is σ = 5132555520. Its totient is φ = 5111168916.

The previous prime is 5121862181. The next prime is 5121862219. The reversal of 5121862217 is 7122681215.

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 5121862217 - 2¹² = 5121858121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121862219) 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, 5345933 + ... + 5346890.

It is an arithmetic number, because the mean of its divisors is an integer number (1283138880).

Almost surely, 2^5121862217 is an apocalyptic number.

It is an amenable number.

5121862217 is a deficient number, since it is larger than the sum of its proper divisors (10693303).

5121862217 is a wasteful number, since it uses less digits than its factorization.

5121862217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10693302.

The product of its digits is 13440, while the sum is 35.

The square root of 5121862217 is about 71567.1867338657. The cubic root of 5121862217 is about 1723.7566863272.

The spelling of 5121862217 in words is "five billion, one hundred twenty-one million, eight hundred sixty-two thousand, two hundred seventeen".