2579506621543 has 16 divisors (see below), whose sum is σ = 2771192304000. Its totient is φ = 2393820693792.

The previous prime is 2579506621519. The next prime is 2579506621547. The reversal of 2579506621543 is 3451266059752.

2579506621543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2579506621543 - 2⁴¹ = 380483365991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579506621547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5432248 + ... + 5887981.

It is an arithmetic number, because the mean of its divisors is an integer number (173199519000).

Almost surely, 2^{2579506621543} is an apocalyptic number.

2579506621543 is a deficient number, since it is larger than the sum of its proper divisors (191685682457).

2579506621543 is a wasteful number, since it uses less digits than its factorization.

2579506621543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11320494.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 2579506621543 in words is "two trillion, five hundred seventy-nine billion, five hundred six million, six hundred twenty-one thousand, five hundred forty-three".