7127974169 has 4 divisors (see below), whose sum is σ = 7142491920. Its totient is φ = 7113456420.

The previous prime is 7127974157. The next prime is 7127974207. The reversal of 7127974169 is 9614797217.

It is a happy number.

7127974169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9614797217 = 139 ⋅69171203.

It is a cyclic number.

It is not a de Polignac number, because 7127974169 - 2⁴ = 7127974153 is a prime.

It is a super-2 number, since 2×7127974169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7127974169.

It is not an unprimeable number, because it can be changed into a prime (7127974369) 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, 7258139 + ... + 7259120.

It is an arithmetic number, because the mean of its divisors is an integer number (1785622980).

Almost surely, 2^7127974169 is an apocalyptic number.

It is an amenable number.

7127974169 is a deficient number, since it is larger than the sum of its proper divisors (14517751).

7127974169 is a wasteful number, since it uses less digits than its factorization.

7127974169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14517750.

The product of its digits is 1333584, while the sum is 53.

The square root of 7127974169 is about 84427.3306992469. The cubic root of 7127974169 is about 1924.5182732523.

The spelling of 7127974169 in words is "seven billion, one hundred twenty-seven million, nine hundred seventy-four thousand, one hundred sixty-nine".