5127347878 has 4 divisors (see below), whose sum is σ = 7691021820. Its totient is φ = 2563673938.

The previous prime is 5127347851. The next prime is 5127347879. The reversal of 5127347878 is 8787437215.

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

It is a super-2 number, since 2×5127347878² = 52579392524062205768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5127347879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281836968 + ... + 1281836971.

It is an arithmetic number, because the mean of its divisors is an integer number (1922755455).

Almost surely, 2^5127347878 is an apocalyptic number.

5127347878 is a deficient number, since it is larger than the sum of its proper divisors (2563673942).

5127347878 is a wasteful number, since it uses less digits than its factorization.

5127347878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563673941.

The product of its digits is 2634240, while the sum is 52.

The square root of 5127347878 is about 71605.5017299649. The cubic root of 5127347878 is about 1724.3718643342.

The spelling of 5127347878 in words is "five billion, one hundred twenty-seven million, three hundred forty-seven thousand, eight hundred seventy-eight".