2378019978888 has 128 divisors (see below), whose sum is σ = 6019308288000. Its totient is φ = 782823398400.

The previous prime is 2378019978881. The next prime is 2378019978911. The reversal of 2378019978888 is 8888799108732.

It is a Cunningham number, because it is equal to 1542083²-1.

It is not an unprimeable number, because it can be changed into a prime (2378019978881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1980032688 + ... + 1980033888.

It is an arithmetic number, because the mean of its divisors is an integer number (47025846000).

Almost surely, 2^{2378019978888} is an apocalyptic number.

It is an amenable number.

2378019978888 is an abundant number, since it is smaller than the sum of its proper divisors (3641288309112).

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

2378019978888 is a wasteful number, since it uses less digits than its factorization.

2378019978888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 780337152, while the sum is 78.

The spelling of 2378019978888 in words is "two trillion, three hundred seventy-eight billion, nineteen million, nine hundred seventy-eight thousand, eight hundred eighty-eight".