5127126639 has 16 divisors (see below), whose sum is σ = 6876502272. Its totient is φ = 3397943808.

The previous prime is 5127126569. The next prime is 5127126643. The reversal of 5127126639 is 9366217215.

It is not a de Polignac number, because 5127126639 - 2⁹ = 5127126127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5127126639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5127126689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206252 + ... + 1210494.

It is an arithmetic number, because the mean of its divisors is an integer number (429781392).

Almost surely, 2^5127126639 is an apocalyptic number.

5127126639 is a deficient number, since it is larger than the sum of its proper divisors (1749375633).

5127126639 is a wasteful number, since it uses less digits than its factorization.

5127126639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526.

The product of its digits is 136080, while the sum is 42.

The square root of 5127126639 is about 71603.9568669218. The cubic root of 5127126639 is about 1724.3470624416.

The spelling of 5127126639 in words is "five billion, one hundred twenty-seven million, one hundred twenty-six thousand, six hundred thirty-nine".