1564681412 has 12 divisors (see below), whose sum is σ = 3129362880. Its totient is φ = 670577736.

The previous prime is 1564681381. The next prime is 1564681427. The reversal of 1564681412 is 2141864651.

1564681412 is an admirable number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 27940712 + ... + 27940767.

It is an arithmetic number, because the mean of its divisors is an integer number (260780240).

Almost surely, 2^1564681412 is an apocalyptic number.

It is an amenable number.

1564681412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1564681412 is a wasteful number, since it uses less digits than its factorization.

1564681412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55881490 (or 55881488 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 1564681412 is about 39556.0540499176. The cubic root of 1564681412 is about 1160.9369688982.

The spelling of 1564681412 in words is "one billion, five hundred sixty-four million, six hundred eighty-one thousand, four hundred twelve".