787945064 has 32 divisors (see below), whose sum is σ = 1525952520. Its totient is φ = 381229056.

The previous prime is 787945061. The next prime is 787945079. The reversal of 787945064 is 460549787.

It can be written as a sum of positive squares in 4 ways, for example, as 564442564 + 223502500 = 23758^2 + 14950^2 .

It is not an unprimeable number, because it can be changed into a prime (787945061) 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 in 7 ways as a sum of consecutive naturals, for example, 18224 + ... + 43680.

Almost surely, 2^787945064 is an apocalyptic number.

It is an amenable number.

787945064 is a deficient number, since it is larger than the sum of its proper divisors (738007456).

787945064 is a wasteful number, since it uses less digits than its factorization.

787945064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25589 (or 25585 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 787945064 is about 28070.3591711969. The cubic root of 787945064 is about 923.6313097132.

The spelling of 787945064 in words is "seven hundred eighty-seven million, nine hundred forty-five thousand, sixty-four".