252861495805783 has 2 divisors, whose sum is σ = 252861495805784. Its totient is φ = 252861495805782.

The previous prime is 252861495805637. The next prime is 252861495805979. The reversal of 252861495805783 is 387508594168252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252861495805783 - 2⁹ = 252861495805271 is a prime.

It is a super-2 number, since 2×252861495805783² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252861495808783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126430747902891 + 126430747902892.

It is an arithmetic number, because the mean of its divisors is an integer number (126430747902892).

It is a 1-persistent number, because it is pandigital, but 2⋅252861495805783 = 505722991611566 is not.

Almost surely, 2^{252861495805783} is an apocalyptic number.

252861495805783 is a deficient number, since it is larger than the sum of its proper divisors (1).

252861495805783 is an equidigital number, since it uses as much as digits as its factorization.

252861495805783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216000, while the sum is 73.

The spelling of 252861495805783 in words is "two hundred fifty-two trillion, eight hundred sixty-one billion, four hundred ninety-five million, eight hundred five thousand, seven hundred eighty-three".