253358517867 has 32 divisors (see below), whose sum is σ = 417001708032. Its totient is φ = 133243052544.

The previous prime is 253358517817. The next prime is 253358517869. The reversal of 253358517867 is 768715853352.

It is a de Polignac number, because none of the positive numbers 2^k-253358517867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253358517867.

It is not an unprimeable number, because it can be changed into a prime (253358517869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1284933 + ... + 1468934.

It is an arithmetic number, because the mean of its divisors is an integer number (13031303376).

Almost surely, 2^253358517867 is an apocalyptic number.

253358517867 is a deficient number, since it is larger than the sum of its proper divisors (163643190165).

253358517867 is a wasteful number, since it uses less digits than its factorization.

253358517867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754227.

The product of its digits is 42336000, while the sum is 60.

The spelling of 253358517867 in words is "two hundred fifty-three billion, three hundred fifty-eight million, five hundred seventeen thousand, eight hundred sixty-seven".