1564961682 has 16 divisors (see below), whose sum is σ = 3135549312. Its totient is φ = 520716240.

The previous prime is 1564961669. The next prime is 1564961743. The reversal of 1564961682 is 2861694651.

It is a super-2 number, since 2×1564961682² = 4898210132256538248, which contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 230794 + ... + 237477.

It is an arithmetic number, because the mean of its divisors is an integer number (195971832).

Almost surely, 2^1564961682 is an apocalyptic number.

1564961682 is an abundant number, since it is smaller than the sum of its proper divisors (1570587630).

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

1564961682 is a wasteful number, since it uses less digits than its factorization.

1564961682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468833.

The product of its digits is 622080, while the sum is 48.

The square root of 1564961682 is about 39559.5965854052. The cubic root of 1564961682 is about 1161.0062814914.

The spelling of 1564961682 in words is "one billion, five hundred sixty-four million, nine hundred sixty-one thousand, six hundred eighty-two".