6400088744 has 96 divisors (see below), whose sum is σ = 15333364800. Its totient is φ = 2485486080.

The previous prime is 6400088743. The next prime is 6400088791. The reversal of 6400088744 is 4478800046.

It is a super-2 number, since 2×6400088744² = 81922271862150995072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6400088741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152624 + ... + 189984.

It is an arithmetic number, because the mean of its divisors is an integer number (159722550).

Almost surely, 2^6400088744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6400088744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7666682400).

6400088744 is an abundant number, since it is smaller than the sum of its proper divisors (8933276056).

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

6400088744 is a wasteful number, since it uses less digits than its factorization.

6400088744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37423 (or 37412 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 6400088744 is about 80000.5546480773. The cubic root of 6400088744 is about 1856.6441149296.

The spelling of 6400088744 in words is "six billion, four hundred million, eighty-eight thousand, seven hundred forty-four".