2259478209634 has 4 divisors (see below), whose sum is σ = 3389217314454. Its totient is φ = 1129739104816.

The previous prime is 2259478209631. The next prime is 2259478209661. The reversal of 2259478209634 is 4369028749522.

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., 2258182425625 + 1295784009 = 1502725^2 + 35997^2 .

It is not an unprimeable number, because it can be changed into a prime (2259478209631) 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 as a sum of consecutive naturals, namely, 564869552407 + ... + 564869552410.

Almost surely, 2^{2259478209634} is an apocalyptic number.

2259478209634 is a deficient number, since it is larger than the sum of its proper divisors (1129739104820).

2259478209634 is a wasteful number, since it uses less digits than its factorization.

2259478209634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129739104819.

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 2259478209634 in words is "two trillion, two hundred fifty-nine billion, four hundred seventy-eight million, two hundred nine thousand, six hundred thirty-four".