5178998715 has 32 divisors (see below), whose sum is σ = 9129238272. Its totient is φ = 2486160000.

The previous prime is 5178998689. The next prime is 5178998749.

It is a happy number.

5178998715 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5178998715 - 2²⁷ = 5044780987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138721 + ... + 172050.

It is an arithmetic number, because the mean of its divisors is an integer number (285288696).

Almost surely, 2^5178998715 is an apocalyptic number.

5178998715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5178998715 is a deficient number, since it is larger than the sum of its proper divisors (3950239557).

5178998715 is a wasteful number, since it uses less digits than its factorization.

5178998715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310891.

The product of its digits is 6350400, while the sum is 60.

The square root of 5178998715 is about 71965.2604733701. The cubic root of 5178998715 is about 1730.1427388435.

The spelling of 5178998715 in words is "five billion, one hundred seventy-eight million, nine hundred ninety-eight thousand, seven hundred fifteen".