5127278387 has 64 divisors (see below), whose sum is σ = 7229399040. Its totient is φ = 3512678400.

The previous prime is 5127278371. The next prime is 5127278399. The reversal of 5127278387 is 7838727215.

It is not a de Polignac number, because 5127278387 - 2⁴ = 5127278371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5127278347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1174613 + ... + 1178969.

It is an arithmetic number, because the mean of its divisors is an integer number (112959360).

Almost surely, 2^5127278387 is an apocalyptic number.

5127278387 is a deficient number, since it is larger than the sum of its proper divisors (2102120653).

5127278387 is a wasteful number, since it uses less digits than its factorization.

5127278387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452.

The product of its digits is 1317120, while the sum is 50.

The square root of 5127278387 is about 71605.0164932597. The cubic root of 5127278387 is about 1724.3640741557.

The spelling of 5127278387 in words is "five billion, one hundred twenty-seven million, two hundred seventy-eight thousand, three hundred eighty-seven".