4991087472 has 240 divisors, whose sum is σ = 15612250752. Its totient is φ = 1368783360.

The previous prime is 4991087467. The next prime is 4991087483. The reversal of 4991087472 is 2747801994.

It is a super-3 number, since 3×4991087472³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7222647 + ... + 7223337.

Almost surely, 2^4991087472 is an apocalyptic number.

4991087472 is a gapful number since it is divisible by the number (42) 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 4991087472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7806125376).

4991087472 is an abundant number, since it is smaller than the sum of its proper divisors (10621163280).

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

4991087472 is a wasteful number, since it uses less digits than its factorization.

4991087472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 4991087472 is about 70647.6289198725. The cubic root of 4991087472 is about 1708.9593284944.

The spelling of 4991087472 in words is "four billion, nine hundred ninety-one million, eighty-seven thousand, four hundred seventy-two".