2538212951809 has 4 divisors (see below), whose sum is σ = 2570342229760. Its totient is φ = 2506083673860.

The previous prime is 2538212951797. The next prime is 2538212951839. The reversal of 2538212951809 is 9081592128352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2538212951809 - 2¹⁵ = 2538212919041 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 2538212951809.

It is not an unprimeable number, because it can be changed into a prime (2538212951839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16064638857 + ... + 16064639014.

It is an arithmetic number, because the mean of its divisors is an integer number (642585557440).

Almost surely, 2^{2538212951809} is an apocalyptic number.

It is an amenable number.

2538212951809 is a deficient number, since it is larger than the sum of its proper divisors (32129277951).

2538212951809 is an equidigital number, since it uses as much as digits as its factorization.

2538212951809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32129277950.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 2538212951809 in words is "two trillion, five hundred thirty-eight billion, two hundred twelve million, nine hundred fifty-one thousand, eight hundred nine".