253018068811 has 4 divisors (see below), whose sum is σ = 253024438824. Its totient is φ = 253011698800.

The previous prime is 253018068767. The next prime is 253018068899. The reversal of 253018068811 is 118860810352.

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

It is a cyclic number.

It is not a de Polignac number, because 253018068811 - 2⁹ = 253018068299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253018062811) 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, 3125050 + ... + 3204991.

It is an arithmetic number, because the mean of its divisors is an integer number (63256109706).

Almost surely, 2^253018068811 is an apocalyptic number.

253018068811 is a deficient number, since it is larger than the sum of its proper divisors (6370013).

253018068811 is an equidigital number, since it uses as much as digits as its factorization.

253018068811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370012.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 253018068811 in words is "two hundred fifty-three billion, eighteen million, sixty-eight thousand, eight hundred eleven".