2541651631543 has 8 divisors (see below), whose sum is σ = 2619768557312. Its totient is φ = 2464030686816.

The previous prime is 2541651631531. The next prime is 2541651631559. The reversal of 2541651631543 is 3451361561452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2541651631543 is a prime.

It is a super-2 number, since 2×2541651631543² (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 = 2541651631493 and 2541651631502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2541651631573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123984855 + ... + 124005352.

It is an arithmetic number, because the mean of its divisors is an integer number (327471069664).

Almost surely, 2^{2541651631543} is an apocalyptic number.

2541651631543 is a deficient number, since it is larger than the sum of its proper divisors (78116925769).

2541651631543 is a wasteful number, since it uses less digits than its factorization.

2541651631543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247990521.

The product of its digits is 1296000, while the sum is 46.

The spelling of 2541651631543 in words is "two trillion, five hundred forty-one billion, six hundred fifty-one million, six hundred thirty-one thousand, five hundred forty-three".