388805872848 has 160 divisors (see below), whose sum is σ = 1078647926400. Its totient is φ = 120314419200.

The previous prime is 388805872823. The next prime is 388805872879. The reversal of 388805872848 is 848278508883.

It is a happy number.

It is a Cunningham number, because it is equal to 623543²-1.

It is a super-2 number, since 2×388805872848² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 14952018 + ... + 14977998.

It is an arithmetic number, because the mean of its divisors is an integer number (6741549540).

Almost surely, 2^388805872848 is an apocalyptic number.

388805872848 is a gapful number since it is divisible by the number (38) 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 388805872848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539323963200).

388805872848 is an abundant number, since it is smaller than the sum of its proper divisors (689842053552).

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

388805872848 is a wasteful number, since it uses less digits than its factorization.

388805872848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26341 (or 26335 counting only the distinct ones).

The product of its (nonzero) digits is 220200960, while the sum is 69.

The spelling of 388805872848 in words is "three hundred eighty-eight billion, eight hundred five million, eight hundred seventy-two thousand, eight hundred forty-eight".