2491455776 has 48 divisors (see below), whose sum is σ = 5104360800. Its totient is φ = 1196095488.

The previous prime is 2491455727. The next prime is 2491455781. The reversal of 2491455776 is 6775541942.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65840 + ... + 96528.

It is an arithmetic number, because the mean of its divisors is an integer number (106340850).

Almost surely, 2^2491455776 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 2491455776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2552180400).

2491455776 is an abundant number, since it is smaller than the sum of its proper divisors (2612905024).

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

2491455776 is a wasteful number, since it uses less digits than its factorization.

2491455776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30801 (or 30793 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The square root of 2491455776 is about 49914.4846312170. The cubic root of 2491455776 is about 1355.6608706894.

The spelling of 2491455776 in words is "two billion, four hundred ninety-one million, four hundred fifty-five thousand, seven hundred seventy-six".