2564338386 has 16 divisors (see below), whose sum is σ = 5137217568. Its totient is φ = 853356000.

The previous prime is 2564338373. The next prime is 2564338409. The reversal of 2564338386 is 6838334652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351960 + ... + 359171.

It is an arithmetic number, because the mean of its divisors is an integer number (321076098).

Almost surely, 2^2564338386 is an apocalyptic number.

2564338386 is an abundant number, since it is smaller than the sum of its proper divisors (2572879182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564338386 is a wasteful number, since it uses less digits than its factorization.

2564338386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711737.

The product of its digits is 2488320, while the sum is 48.

The square root of 2564338386 is about 50639.2968553079. The cubic root of 2564338386 is about 1368.7530853582.

The spelling of 2564338386 in words is "two billion, five hundred sixty-four million, three hundred thirty-eight thousand, three hundred eighty-six".