2758972543 has 4 divisors (see below), whose sum is σ = 2760516520. Its totient is φ = 2757428568.

The previous prime is 2758972519. The next prime is 2758972553. The reversal of 2758972543 is 3452798572.

It is a happy number.

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-2758972543 is a prime.

It is a super-2 number, since 2×2758972543² = 15223858986055773698, which 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 (2758972553) 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, 769305 + ... + 772882.

It is an arithmetic number, because the mean of its divisors is an integer number (690129130).

Almost surely, 2^2758972543 is an apocalyptic number.

2758972543 is a deficient number, since it is larger than the sum of its proper divisors (1543977).

2758972543 is a wasteful number, since it uses less digits than its factorization.

2758972543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543976.

The product of its digits is 4233600, while the sum is 52.

The square root of 2758972543 is about 52525.9225811408. The cubic root of 2758972543 is about 1402.5417334798.

The spelling of 2758972543 in words is "two billion, seven hundred fifty-eight million, nine hundred seventy-two thousand, five hundred forty-three".