5178984757 has 6 divisors (see below), whose sum is σ = 5319406934. Its totient is φ = 5038586280.

The previous prime is 5178984731. The next prime is 5178984761. The reversal of 5178984757 is 7574898715.

It can be written as a sum of positive squares in only one way, i.e., 5039012196 + 139972561 = 70986^2 + 11831^2 .

It is not a de Polignac number, because 5178984757 - 2¹¹ = 5178982709 is a prime.

It is a super-2 number, since 2×5178984757² = 53643766226476698098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5178984695 and 5178984704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178984787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 431832 + ... + 443662.

Almost surely, 2^5178984757 is an apocalyptic number.

It is an amenable number.

5178984757 is a deficient number, since it is larger than the sum of its proper divisors (140422177).

5178984757 is an frugal number, since it uses more digits than its factorization.

5178984757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23699 (or 11868 counting only the distinct ones).

The product of its digits is 19756800, while the sum is 61.

The square root of 5178984757 is about 71965.1634959582. The cubic root of 5178984757 is about 1730.1411845306.

The spelling of 5178984757 in words is "five billion, one hundred seventy-eight million, nine hundred eighty-four thousand, seven hundred fifty-seven".