4912855899840 has 896 divisors, whose sum is σ = 21169006663680. Its totient is φ = 1046982426624.

The previous prime is 4912855899827. The next prime is 4912855899859. The reversal of 4912855899840 is 489985582194.

4912855899840 is a `hidden beast` number, since 4 + 9 + 1 + 28 + 558 + 9 + 9 + 8 + 40 = 666.

It is a super-2 number, since 2×4912855899840² (a number of 26 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 109990792 + ... + 110035448.

Almost surely, 2^{4912855899840} is an apocalyptic number.

4912855899840 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 4912855899840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10584503331840).

4912855899840 is an abundant number, since it is smaller than the sum of its proper divisors (16256150763840).

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

4912855899840 is a wasteful number, since it uses less digits than its factorization.

4912855899840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44814 (or 44798 counting only the distinct ones).

The product of its (nonzero) digits is 298598400, while the sum is 72.

The spelling of 4912855899840 in words is "four trillion, nine hundred twelve billion, eight hundred fifty-five million, eight hundred ninety-nine thousand, eight hundred forty".