4891591248 has 40 divisors (see below), whose sum is σ = 12930490848. Its totient is φ = 1592610432.

The previous prime is 4891591241. The next prime is 4891591259. The reversal of 4891591248 is 8421951984.

It is a self number, because there is not a number n which added to its sum of digits gives 4891591248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891591241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182915 + ... + 1187042.

Almost surely, 2^4891591248 is an apocalyptic number.

4891591248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4891591248 is an abundant number, since it is smaller than the sum of its proper divisors (8038899600).

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

4891591248 is a wasteful number, since it uses less digits than its factorization.

4891591248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370011 (or 2370005 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The square root of 4891591248 is about 69939.9116956835. The cubic root of 4891591248 is about 1697.5271136992.

The spelling of 4891591248 in words is "four billion, eight hundred ninety-one million, five hundred ninety-one thousand, two hundred forty-eight".