52127980969 has 4 divisors (see below), whose sum is σ = 52132752900. Its totient is φ = 52123209040.

The previous prime is 52127980951. The next prime is 52127980999. The reversal of 52127980969 is 96908972125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21144940569 + 30983040400 = 145413^2 + 176020^2 .

It is a cyclic number.

It is not a de Polignac number, because 52127980969 - 2⁵ = 52127980937 is a prime.

It is a super-2 number, since 2×52127980969² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52127980999) 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 in 3 ways as a sum of consecutive naturals, for example, 2369542 + ... + 2391439.

It is an arithmetic number, because the mean of its divisors is an integer number (13033188225).

Almost surely, 2^52127980969 is an apocalyptic number.

It is an amenable number.

52127980969 is a deficient number, since it is larger than the sum of its proper divisors (4771931).

52127980969 is a wasteful number, since it uses less digits than its factorization.

52127980969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771930.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 52127980969 in words is "fifty-two billion, one hundred twenty-seven million, nine hundred eighty thousand, nine hundred sixty-nine".