2564367434 has 4 divisors (see below), whose sum is σ = 3846551154. Its totient is φ = 1282183716.

The previous prime is 2564367401. The next prime is 2564367437. The reversal of 2564367434 is 4347634652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2469791809 + 94575625 = 49697^2 + 9725^2 .

It is not an unprimeable number, because it can be changed into a prime (2564367437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641091857 + ... + 641091860.

Almost surely, 2^2564367434 is an apocalyptic number.

2564367434 is a deficient number, since it is larger than the sum of its proper divisors (1282183720).

2564367434 is a wasteful number, since it uses less digits than its factorization.

2564367434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282183719.

The product of its digits is 1451520, while the sum is 44.

The square root of 2564367434 is about 50639.5836673249. The cubic root of 2564367434 is about 1368.7582536035.

The spelling of 2564367434 in words is "two billion, five hundred sixty-four million, three hundred sixty-seven thousand, four hundred thirty-four".