52418457869 has 4 divisors (see below), whose sum is σ = 53156746080. Its totient is φ = 51680169660.

The previous prime is 52418457823. The next prime is 52418457911. The reversal of 52418457869 is 96875481425.

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 a de Polignac number, because none of the positive numbers 2^k-52418457869 is a prime.

It is a super-2 number, since 2×52418457869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52418457569) 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, 369143999 + ... + 369144140.

It is an arithmetic number, because the mean of its divisors is an integer number (13289186520).

Almost surely, 2^52418457869 is an apocalyptic number.

It is an amenable number.

52418457869 is a deficient number, since it is larger than the sum of its proper divisors (738288211).

52418457869 is an equidigital number, since it uses as much as digits as its factorization.

52418457869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738288210.

The product of its digits is 19353600, while the sum is 59.

The spelling of 52418457869 in words is "fifty-two billion, four hundred eighteen million, four hundred fifty-seven thousand, eight hundred sixty-nine".