7785884676 has 48 divisors (see below), whose sum is σ = 19178530560. Its totient is φ = 2451589920.

The previous prime is 7785884671. The next prime is 7785884677. The reversal of 7785884676 is 6764885877.

Its product of digits (126443520) is a multiple of the sum of its prime factors (98784).

It is not an unprimeable number, because it can be changed into a prime (7785884671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29911 + ... + 128321.

It is an arithmetic number, because the mean of its divisors is an integer number (399552720).

Almost surely, 2^7785884676 is an apocalyptic number.

7785884676 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7785884676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9589265280).

7785884676 is an abundant number, since it is smaller than the sum of its proper divisors (11392645884).

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

7785884676 is a wasteful number, since it uses less digits than its factorization.

7785884676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98784 (or 98782 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 66.

The square root of 7785884676 is about 88237.6601910998. The cubic root of 7785884676 is about 1981.9954609886.

The spelling of 7785884676 in words is "seven billion, seven hundred eighty-five million, eight hundred eighty-four thousand, six hundred seventy-six".