2474841781 has 4 divisors (see below), whose sum is σ = 2478333100. Its totient is φ = 2471350464.

The previous prime is 2474841727. The next prime is 2474841799. The reversal of 2474841781 is 1871484742.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208224900 + 2266616881 = 14430^2 + 47609^2 .

It is a cyclic number.

It is not a de Polignac number, because 2474841781 - 2¹¹ = 2474839733 is a prime.

It is a super-4 number, since 4×2474841781⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2474881781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1744596 + ... + 1746013.

It is an arithmetic number, because the mean of its divisors is an integer number (619583275).

Almost surely, 2^2474841781 is an apocalyptic number.

It is an amenable number.

2474841781 is a deficient number, since it is larger than the sum of its proper divisors (3491319).

2474841781 is an equidigital number, since it uses as much as digits as its factorization.

2474841781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491318.

The product of its digits is 401408, while the sum is 46.

The square root of 2474841781 is about 49747.7816691358. The cubic root of 2474841781 is about 1352.6407899058.

The spelling of 2474841781 in words is "two billion, four hundred seventy-four million, eight hundred forty-one thousand, seven hundred eighty-one".