4551999467520 has 832 divisors, whose sum is σ = 16198458693120. Its totient is φ = 1086119215104.

The previous prime is 4551999467443. The next prime is 4551999467579. The reversal of 4551999467520 is 257649991554.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2029423519 + ... + 2029425761.

Almost surely, 2^{4551999467520} is an apocalyptic number.

4551999467520 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 4551999467520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8099229346560).

4551999467520 is an abundant number, since it is smaller than the sum of its proper divisors (11646459225600).

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

4551999467520 is a wasteful number, since it uses less digits than its factorization.

4551999467520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2366 counting only the distinct ones).

The product of its (nonzero) digits is 122472000, while the sum is 66.

The spelling of 4551999467520 in words is "four trillion, five hundred fifty-one billion, nine hundred ninety-nine million, four hundred sixty-seven thousand, five hundred twenty".