2564371043 has 16 divisors (see below), whose sum is σ = 2908792320. Its totient is φ = 2241128736.

The previous prime is 2564371003. The next prime is 2564371067. The reversal of 2564371043 is 3401734652.

It is not a de Polignac number, because 2564371043 - 2¹⁶ = 2564305507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2564370994 and 2564371012.

It is not an unprimeable number, because it can be changed into a prime (2564371003) 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, 721196 + ... + 724742.

It is an arithmetic number, because the mean of its divisors is an integer number (181799520).

Almost surely, 2^2564371043 is an apocalyptic number.

2564371043 is a deficient number, since it is larger than the sum of its proper divisors (344421277).

2564371043 is a wasteful number, since it uses less digits than its factorization.

2564371043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 2564371043 is about 50639.6193014916. The cubic root of 2564371043 is about 1368.7588957172.

The spelling of 2564371043 in words is "two billion, five hundred sixty-four million, three hundred seventy-one thousand, forty-three".