4665123840 has 352 divisors, whose sum is σ = 16374951936. Its totient is φ = 1126563840.

The previous prime is 4665123839. The next prime is 4665123871. The reversal of 4665123840 is 483215664.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12180289 + ... + 12180671.

Almost surely, 2^4665123840 is an apocalyptic number.

4665123840 is a gapful number since it is divisible by the number (40) 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 4665123840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8187475968).

4665123840 is an abundant number, since it is smaller than the sum of its proper divisors (11709828096).

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

4665123840 is a wasteful number, since it uses less digits than its factorization.

4665123840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 4665123840 is about 68301.7118379913. The cubic root of 4665123840 is about 1670.9151330293.

The spelling of 4665123840 in words is "four billion, six hundred sixty-five million, one hundred twenty-three thousand, eight hundred forty".