786587987880 has 512 divisors, whose sum is σ = 2900556864000. Its totient is φ = 188710502400.

The previous prime is 786587987873. The next prime is 786587987881. The reversal of 786587987880 is 88789785687.

It is a self number, because there is not a number n which added to its sum of digits gives 786587987880.

It is not an unprimeable number, because it can be changed into a prime (786587987881) 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 127 ways as a sum of consecutive naturals, for example, 53769127 + ... + 53783753.

It is an arithmetic number, because the mean of its divisors is an integer number (5665150125).

Almost surely, 2^786587987880 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 786587987880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450278432000).

786587987880 is an abundant number, since it is smaller than the sum of its proper divisors (2113968876120).

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

786587987880 is a wasteful number, since it uses less digits than its factorization.

786587987880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14794 (or 14784 counting only the distinct ones).

The product of its (nonzero) digits is 3034644480, while the sum is 81.

The spelling of 786587987880 in words is "seven hundred eighty-six billion, five hundred eighty-seven million, nine hundred eighty-seven thousand, eight hundred eighty".