5111780217 has 8 divisors (see below), whose sum is σ = 6820482240. Its totient is φ = 3405465840.

The previous prime is 5111780189. The next prime is 5111780227. The reversal of 5111780217 is 7120871115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5111780217 - 2¹¹ = 5111778169 is a prime.

It is a super-2 number, since 2×5111780217² = 52260593973825134178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5111780227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591909 + ... + 600482.

It is an arithmetic number, because the mean of its divisors is an integer number (852560280).

Almost surely, 2^5111780217 is an apocalyptic number.

It is an amenable number.

5111780217 is a deficient number, since it is larger than the sum of its proper divisors (1708702023).

5111780217 is a wasteful number, since it uses less digits than its factorization.

5111780217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193823.

The product of its (nonzero) digits is 3920, while the sum is 33.

The square root of 5111780217 is about 71496.7147287202. The cubic root of 5111780217 is about 1722.6249149981.

The spelling of 5111780217 in words is "five billion, one hundred eleven million, seven hundred eighty thousand, two hundred seventeen".