5117779969 has 4 divisors (see below), whose sum is σ = 5120033796. Its totient is φ = 5115526144.

The previous prime is 5117779967. The next prime is 5117779973. The reversal of 5117779969 is 9699777115.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2264617744 + 2853162225 = 47588^2 + 53415^2 .

It is a cyclic number.

It is not a de Polignac number, because 5117779969 - 2¹ = 5117779967 is a prime.

It is a super-2 number, since 2×5117779969² = 52383343622195281922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5117779967) 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, 1123504 + ... + 1128049.

It is an arithmetic number, because the mean of its divisors is an integer number (1280008449).

Almost surely, 2^5117779969 is an apocalyptic number.

It is an amenable number.

5117779969 is a deficient number, since it is larger than the sum of its proper divisors (2253827).

5117779969 is a wasteful number, since it uses less digits than its factorization.

5117779969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253826.

The product of its digits is 7501410, while the sum is 61.

The square root of 5117779969 is about 71538.6606598139. The cubic root of 5117779969 is about 1723.2986060226.

The spelling of 5117779969 in words is "five billion, one hundred seventeen million, seven hundred seventy-nine thousand, nine hundred sixty-nine".