4121518464 has 320 divisors, whose sum is σ = 14173552800. Its totient is φ = 1164533760.

The previous prime is 4121518439. The next prime is 4121518507. The reversal of 4121518464 is 4648151214.

4121518464 is a `hidden beast` number, since 41 + 2 + 151 + 8 + 464 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7910524 + ... + 7911044.

Almost surely, 2^4121518464 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 4121518464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7086776400).

4121518464 is an abundant number, since it is smaller than the sum of its proper divisors (10052034336).

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

4121518464 is a wasteful number, since it uses less digits than its factorization.

4121518464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 642 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 4121518464 is about 64199.0534509661. The cubic root of 4121518464 is about 1603.3158401721.

Adding to 4121518464 its reverse (4648151214), we get a palindrome (8769669678).

The spelling of 4121518464 in words is "four billion, one hundred twenty-one million, five hundred eighteen thousand, four hundred sixty-four".