2543627652551 has 16 divisors (see below), whose sum is σ = 2638636492800. Its totient is φ = 2449455409440.

The previous prime is 2543627652541. The next prime is 2543627652557. The reversal of 2543627652551 is 1552567263452.

It is a cyclic number.

It is not a de Polignac number, because 2543627652551 - 2¹⁰ = 2543627651527 is a prime.

It is a super-2 number, since 2×2543627652551² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2543627652493 and 2543627652502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543627652557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5477585 + ... + 5923781.

It is an arithmetic number, because the mean of its divisors is an integer number (164914780800).

Almost surely, 2^{2543627652551} is an apocalyptic number.

2543627652551 is a deficient number, since it is larger than the sum of its proper divisors (95008840249).

2543627652551 is a wasteful number, since it uses less digits than its factorization.

2543627652551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447134.

The product of its digits is 15120000, while the sum is 53.

The spelling of 2543627652551 in words is "two trillion, five hundred forty-three billion, six hundred twenty-seven million, six hundred fifty-two thousand, five hundred fifty-one".