388893938880 has 112 divisors (see below), whose sum is σ = 1235592473184. Its totient is φ = 103633305600.

The previous prime is 388893938879. The next prime is 388893938897. The reversal of 388893938880 is 88839398883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255480 + ... + 1534280.

Almost surely, 2^388893938880 is an apocalyptic number.

388893938880 is a gapful number since it is divisible by the number (30) 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 388893938880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617796236592).

388893938880 is an abundant number, since it is smaller than the sum of its proper divisors (846698534304).

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

388893938880 is a wasteful number, since it uses less digits than its factorization.

388893938880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280274 (or 280264 counting only the distinct ones).

The product of its (nonzero) digits is 573308928, while the sum is 75.

The spelling of 388893938880 in words is "three hundred eighty-eight billion, eight hundred ninety-three million, nine hundred thirty-eight thousand, eight hundred eighty".