7640323488 has 192 divisors, whose sum is σ = 26289930240. Its totient is φ = 2112480000.

The previous prime is 7640323423. The next prime is 7640323513. The reversal of 7640323488 is 8843230467.

7640323488 is a `hidden beast` number, since 7 + 6 + 403 + 234 + 8 + 8 = 666.

It is a super-2 number, since 2×7640323488² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167113 + ... + 207863.

It is an arithmetic number, because the mean of its divisors is an integer number (136926720).

Almost surely, 2^7640323488 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 7640323488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13144965120).

7640323488 is an abundant number, since it is smaller than the sum of its proper divisors (18649606752).

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

7640323488 is a wasteful number, since it uses less digits than its factorization.

7640323488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40808 (or 40794 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 7640323488 is about 87408.9439817231. The cubic root of 7640323488 is about 1969.5661982113.

The spelling of 7640323488 in words is "seven billion, six hundred forty million, three hundred twenty-three thousand, four hundred eighty-eight".