5127521699 has 4 divisors (see below), whose sum is σ = 5141051160. Its totient is φ = 5113992240.

The previous prime is 5127521689. The next prime is 5127521701. The reversal of 5127521699 is 9961257215.

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

It is a cyclic number.

It is not a de Polignac number, because 5127521699 - 2⁴ = 5127521683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5127521689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6764162 + ... + 6764919.

It is an arithmetic number, because the mean of its divisors is an integer number (1285262790).

Almost surely, 2^5127521699 is an apocalyptic number.

5127521699 is a deficient number, since it is larger than the sum of its proper divisors (13529461).

5127521699 is a wasteful number, since it uses less digits than its factorization.

5127521699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13529460.

The product of its digits is 340200, while the sum is 47.

The square root of 5127521699 is about 71606.7154602136. The cubic root of 5127521699 is about 1724.3913499541.

The spelling of 5127521699 in words is "five billion, one hundred twenty-seven million, five hundred twenty-one thousand, six hundred ninety-nine".