253701813689 has 2 divisors, whose sum is σ = 253701813690. Its totient is φ = 253701813688.

The previous prime is 253701813643. The next prime is 253701813707. The reversal of 253701813689 is 986318107352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163290344464 + 90411469225 = 404092^2 + 300685^2 .

It is a cyclic number.

It is not a de Polignac number, because 253701813689 - 2³² = 249406846393 is a prime.

It is a super-2 number, since 2×253701813689² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 253701813689.

It is not a weakly prime, because it can be changed into another prime (253701813619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126850906844 + 126850906845.

It is an arithmetic number, because the mean of its divisors is an integer number (126850906845).

Almost surely, 2^253701813689 is an apocalyptic number.

It is an amenable number.

253701813689 is a deficient number, since it is larger than the sum of its proper divisors (1).

253701813689 is an equidigital number, since it uses as much as digits as its factorization.

253701813689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 253701813689 in words is "two hundred fifty-three billion, seven hundred one million, eight hundred thirteen thousand, six hundred eighty-nine".