52186009969 has 2 divisors, whose sum is σ = 52186009970. Its totient is φ = 52186009968.

The previous prime is 52186009943. The next prime is 52186009999. The reversal of 52186009969 is 96990068125.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41284144225 + 10901865744 = 203185^2 + 104412^2 .

It is a cyclic number.

It is not a de Polignac number, because 52186009969 - 2⁹ = 52186009457 is a prime.

It is a super-2 number, since 2×52186009969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52186009999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26093004984 + 26093004985.

It is an arithmetic number, because the mean of its divisors is an integer number (26093004985).

Almost surely, 2^52186009969 is an apocalyptic number.

It is an amenable number.

52186009969 is a deficient number, since it is larger than the sum of its proper divisors (1).

52186009969 is an equidigital number, since it uses as much as digits as its factorization.

52186009969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 52186009969 in words is "fifty-two billion, one hundred eighty-six million, nine thousand, nine hundred sixty-nine".