4887639685440 has 672 divisors, whose sum is σ = 17761127694336. Its totient is φ = 1231225712640.

The previous prime is 4887639685421. The next prime is 4887639685477. The reversal of 4887639685440 is 445869367884.

4887639685440 is a `hidden beast` number, since 4 + 8 + 8 + 76 + 3 + 9 + 6 + 8 + 544 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3322663905 + ... + 3322665375.

Almost surely, 2^{4887639685440} is an apocalyptic number.

4887639685440 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 4887639685440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8880563847168).

4887639685440 is an abundant number, since it is smaller than the sum of its proper divisors (12873488008896).

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

4887639685440 is a wasteful number, since it uses less digits than its factorization.

4887639685440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 1114767360, while the sum is 72.

The spelling of 4887639685440 in words is "four trillion, eight hundred eighty-seven billion, six hundred thirty-nine million, six hundred eighty-five thousand, four hundred forty".