787009522816 has 128 divisors (see below), whose sum is σ = 1741670579520. Its totient is φ = 351214080000.

The previous prime is 787009522813. The next prime is 787009522823. The reversal of 787009522816 is 618225900787.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (787009522813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47831391 + ... + 47847841.

Almost surely, 2^787009522816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 787009522816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870835289760).

787009522816 is an abundant number, since it is smaller than the sum of its proper divisors (954661056704).

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

787009522816 is a wasteful number, since it uses less digits than its factorization.

787009522816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094 (or 17082 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 787009522816 in words is "seven hundred eighty-seven billion, nine million, five hundred twenty-two thousand, eight hundred sixteen".