2491335827280 has 120 divisors (see below), whose sum is σ = 8373580270848. Its totient is φ = 663812767488.

The previous prime is 2491335827261. The next prime is 2491335827291. The reversal of 2491335827280 is 827285331942.

2491335827280 is a `hidden beast` number, since 2 + 4 + 9 + 1 + 3 + 358 + 2 + 7 + 280 = 666.

2491335827280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534072 + ... + 2295191.

Almost surely, 2^{2491335827280} is an apocalyptic number.

2491335827280 is a gapful number since it is divisible by the number (20) 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 2491335827280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4186790135424).

2491335827280 is an abundant number, since it is smaller than the sum of its proper divisors (5882244443568).

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

2491335827280 is a wasteful number, since it uses less digits than its factorization.

2491335827280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830505 (or 2830496 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 2491335827280 in words is "two trillion, four hundred ninety-one billion, three hundred thirty-five million, eight hundred twenty-seven thousand, two hundred eighty".