2491055572608 has 256 divisors, whose sum is σ = 7742142720000. Its totient is φ = 786332261376.

The previous prime is 2491055572571. The next prime is 2491055572639. The reversal of 2491055572608 is 8062755501942.

2491055572608 is a `hidden beast` number, since 2 + 4 + 9 + 1 + 0 + 5 + 5 + 572 + 60 + 8 = 666.

2491055572608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204799935 + ... + 204812097.

It is an arithmetic number, because the mean of its divisors is an integer number (30242745000).

Almost surely, 2^{2491055572608} 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 2491055572608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3871071360000).

2491055572608 is an abundant number, since it is smaller than the sum of its proper divisors (5251087147392).

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

2491055572608 is a wasteful number, since it uses less digits than its factorization.

2491055572608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15324 (or 15306 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 2491055572608 in words is "two trillion, four hundred ninety-one billion, fifty-five million, five hundred seventy-two thousand, six hundred eight".