4509720781282 has 4 divisors (see below), whose sum is σ = 6764581171926. Its totient is φ = 2254860390640.

The previous prime is 4509720781273. The next prime is 4509720781301. The reversal of 4509720781282 is 2821870279054.

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

It can be written as a sum of positive squares in only one way, i.e., 3425308876081 + 1084411905201 = 1850759^2 + 1041351^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127430195319 + ... + 1127430195322.

Almost surely, 2^{4509720781282} is an apocalyptic number.

4509720781282 is a deficient number, since it is larger than the sum of its proper divisors (2254860390644).

4509720781282 is a wasteful number, since it uses less digits than its factorization.

4509720781282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254860390643.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 4509720781282 in words is "four trillion, five hundred nine billion, seven hundred twenty million, seven hundred eighty-one thousand, two hundred eighty-two".