2447780641 has 8 divisors (see below), whose sum is σ = 2532761280. Its totient is φ = 2362838352.

The previous prime is 2447780579. The next prime is 2447780663. The reversal of 2447780641 is 1460877442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2447780641 - 2¹³ = 2447772449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2447780941) 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, 193476 + ... + 205738.

It is an arithmetic number, because the mean of its divisors is an integer number (316595160).

Almost surely, 2^2447780641 is an apocalyptic number.

It is an amenable number.

2447780641 is a deficient number, since it is larger than the sum of its proper divisors (84980639).

2447780641 is a wasteful number, since it uses less digits than its factorization.

2447780641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19175.

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 2447780641 is about 49475.0506922429. The cubic root of 2447780641 is about 1347.6925633317.

The spelling of 2447780641 in words is "two billion, four hundred forty-seven million, seven hundred eighty thousand, six hundred forty-one".