10280387783505 has 32 divisors (see below), whose sum is σ = 18918158586624. Its totient is φ = 4669672041216.

The previous prime is 10280387783489. The next prime is 10280387783507. The reversal of 10280387783505 is 50538778308201.

It is not a de Polignac number, because 10280387783505 - 2⁴ = 10280387783489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10280387783507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311793882 + ... + 311826851.

It is an arithmetic number, because the mean of its divisors is an integer number (591192455832).

Almost surely, 2^{10280387783505} is an apocalyptic number.

10280387783505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10280387783505 is a deficient number, since it is larger than the sum of its proper divisors (8637770803119).

10280387783505 is a wasteful number, since it uses less digits than its factorization.

10280387783505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623620905.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 10280387783505 in words is "ten trillion, two hundred eighty billion, three hundred eighty-seven million, seven hundred eighty-three thousand, five hundred five".