2280137731209 has 192 divisors, whose sum is σ = 3928637440000. Its totient is φ = 1261643558400.

The previous prime is 2280137731163. The next prime is 2280137731213. The reversal of 2280137731209 is 9021377310822.

2280137731209 is a `hidden beast` number, since 2 + 280 + 137 + 7 + 31 + 209 = 666.

It is not a de Polignac number, because 2280137731209 - 2⁸ = 2280137730953 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2280137731229) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2097642264 + ... + 2097643350.

Almost surely, 2^{2280137731209} is an apocalyptic number.

It is an amenable number.

2280137731209 is a deficient number, since it is larger than the sum of its proper divisors (1648499708791).

2280137731209 is a wasteful number, since it uses less digits than its factorization.

2280137731209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 2280137731209 in words is "two trillion, two hundred eighty billion, one hundred thirty-seven million, seven hundred thirty-one thousand, two hundred nine".