685915030383 has 16 divisors (see below), whose sum is σ = 1032097852800. Its totient is φ = 401371386080.

The previous prime is 685915030369. The next prime is 685915030391. The reversal of 685915030383 is 383030519586.

It is a cyclic number.

It is not a de Polignac number, because 685915030383 - 2¹⁸ = 685914768239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685915035383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358366353 + ... + 358368266.

It is an arithmetic number, because the mean of its divisors is an integer number (64506115800).

Almost surely, 2^685915030383 is an apocalyptic number.

685915030383 is a deficient number, since it is larger than the sum of its proper divisors (346182822417).

685915030383 is a wasteful number, since it uses less digits than its factorization.

685915030383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716734662.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 685915030383 in words is "six hundred eighty-five billion, nine hundred fifteen million, thirty thousand, three hundred eighty-three".