2700638543 has 18 divisors (see below), whose sum is σ = 2846873952. Its totient is φ = 2561795040.

The previous prime is 2700638539. The next prime is 2700638557. The reversal of 2700638543 is 3458360072.

It is not a de Polignac number, because 2700638543 - 2² = 2700638539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2700638497 and 2700638506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2700638243) 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 17 ways as a sum of consecutive naturals, for example, 3128930 + ... + 3129792.

It is an arithmetic number, because the mean of its divisors is an integer number (158159664).

Almost surely, 2^2700638543 is an apocalyptic number.

2700638543 is a deficient number, since it is larger than the sum of its proper divisors (146235409).

2700638543 is an frugal number, since it uses more digits than its factorization.

2700638543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2700638543 is about 51967.6682467089. The cubic root of 2700638543 is about 1392.5864138039.

The spelling of 2700638543 in words is "two billion, seven hundred million, six hundred thirty-eight thousand, five hundred forty-three".