887788118778 has 256 divisors, whose sum is σ = 2093921280000. Its totient is φ = 248122828800.

The previous prime is 887788118771. The next prime is 887788118869. The reversal of 887788118778 is 877811887788.

887788118778 is a nontrivial binomial coefficient, being equal to C(1332508, 2).

It is not an unprimeable number, because it can be changed into a prime (887788118771) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3275970783 + ... + 3275971053.

It is an arithmetic number, because the mean of its divisors is an integer number (8179380000).

Almost surely, 2^887788118778 is an apocalyptic number.

887788118778 is the 1332507-th triangular number and also the 666254-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 887788118778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046960640000).

887788118778 is an abundant number, since it is smaller than the sum of its proper divisors (1206133161222).

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

887788118778 is a wasteful number, since it uses less digits than its factorization.

887788118778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741.

The product of its digits is 629407744, while the sum is 78.

The spelling of 887788118778 in words is "eight hundred eighty-seven billion, seven hundred eighty-eight million, one hundred eighteen thousand, seven hundred seventy-eight".