96638818440 has 128 divisors (see below), whose sum is σ = 299389317120. Its totient is φ = 24928992000.

The previous prime is 96638818439. The next prime is 96638818447. The reversal of 96638818440 is 4481883669.

It is a super-2 number, since 2×96638818440² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (96638818447) 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, 14977215 + ... + 14983665.

It is an arithmetic number, because the mean of its divisors is an integer number (2338979040).

Almost surely, 2^96638818440 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 96638818440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149694658560).

96638818440 is an abundant number, since it is smaller than the sum of its proper divisors (202750498680).

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

96638818440 is a wasteful number, since it uses less digits than its factorization.

96638818440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 96638818440 in words is "ninety-six billion, six hundred thirty-eight million, eight hundred eighteen thousand, four hundred forty".