2551212675839 has 4 divisors (see below), whose sum is σ = 2639185526760. Its totient is φ = 2463239824920.

The previous prime is 2551212675827. The next prime is 2551212675853. The reversal of 2551212675839 is 9385762121552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551212675839 is a prime.

It is a super-2 number, since 2×2551212675839² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551212675239) 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, 43986425417 + ... + 43986425474.

It is an arithmetic number, because the mean of its divisors is an integer number (659796381690).

Almost surely, 2^{2551212675839} is an apocalyptic number.

2551212675839 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2551212675839 is a deficient number, since it is larger than the sum of its proper divisors (87972850921).

2551212675839 is an equidigital number, since it uses as much as digits as its factorization.

2551212675839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87972850920.

The product of its digits is 9072000, while the sum is 56.

The spelling of 2551212675839 in words is "two trillion, five hundred fifty-one billion, two hundred twelve million, six hundred seventy-five thousand, eight hundred thirty-nine".