280638852464763 has 240 divisors, whose sum is σ = 477360250123680. Its totient is φ = 164024347189248.

The previous prime is 280638852464701. The next prime is 280638852464807. The reversal of 280638852464763 is 367464258836082.

280638852464763 is a `hidden beast` number, since 2 + 8 + 0 + 6 + 38 + 8 + 524 + 6 + 4 + 7 + 63 = 666.

It is not a de Polignac number, because 280638852464763 - 2²⁴ = 280638835687547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280638852464691 and 280638852464700.

It is not an unprimeable number, because it can be changed into a prime (280638852464263) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 49504116493 + ... + 49504122161.

It is an arithmetic number, because the mean of its divisors is an integer number (1989001042182).

Almost surely, 2^{280638852464763} is an apocalyptic number.

280638852464763 is a deficient number, since it is larger than the sum of its proper divisors (196721397658917).

280638852464763 is a wasteful number, since it uses less digits than its factorization.

280638852464763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 2229534720, while the sum is 72.

The spelling of 280638852464763 in words is "two hundred eighty trillion, six hundred thirty-eight billion, eight hundred fifty-two million, four hundred sixty-four thousand, seven hundred sixty-three".