52178293169 has 4 divisors (see below), whose sum is σ = 52348255344. Its totient is φ = 52008330996.

The previous prime is 52178293151. The next prime is 52178293199. The reversal of 52178293169 is 96139287125.

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.

It is a cyclic number.

It is not a de Polignac number, because 52178293169 - 2²⁰ = 52177244593 is a prime.

It is a super-2 number, since 2×52178293169² (a number of 22 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 52178293169.

It is not an unprimeable number, because it can be changed into a prime (52178293109) 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, 84980627 + ... + 84981240.

It is an arithmetic number, because the mean of its divisors is an integer number (13087063836).

Almost surely, 2^52178293169 is an apocalyptic number.

It is an amenable number.

52178293169 is a deficient number, since it is larger than the sum of its proper divisors (169962175).

52178293169 is a wasteful number, since it uses less digits than its factorization.

52178293169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169962174.

The product of its digits is 1632960, while the sum is 53.

The spelling of 52178293169 in words is "fifty-two billion, one hundred seventy-eight million, two hundred ninety-three thousand, one hundred sixty-nine".