253108326689 has 4 divisors (see below), whose sum is σ = 253129764756. Its totient is φ = 253086888624.

The previous prime is 253108326671. The next prime is 253108326703. The reversal of 253108326689 is 986623801352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168598929664 + 84509397025 = 410608^2 + 290705^2 .

It is a cyclic number.

It is not a de Polignac number, because 253108326689 - 2⁸ = 253108326433 is a prime.

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 253108326689.

It is not an unprimeable number, because it can be changed into a prime (253108326659) 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, 10701314 + ... + 10724939.

It is an arithmetic number, because the mean of its divisors is an integer number (63282441189).

Almost surely, 2^253108326689 is an apocalyptic number.

It is an amenable number.

253108326689 is a deficient number, since it is larger than the sum of its proper divisors (21438067).

253108326689 is a wasteful number, since it uses less digits than its factorization.

253108326689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21438066.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 253108326689 in words is "two hundred fifty-three billion, one hundred eight million, three hundred twenty-six thousand, six hundred eighty-nine".