683926406465 has 16 divisors (see below), whose sum is σ = 847348992000. Its totient is φ = 529593079680.

The previous prime is 683926406413. The next prime is 683926406473. The reversal of 683926406465 is 564604629386.

It is not a de Polignac number, because 683926406465 - 2²² = 683922212161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13108715 + ... + 13160784.

It is an arithmetic number, because the mean of its divisors is an integer number (52959312000).

Almost surely, 2^683926406465 is an apocalyptic number.

It is an amenable number.

683926406465 is a deficient number, since it is larger than the sum of its proper divisors (163422585535).

683926406465 is a wasteful number, since it uses less digits than its factorization.

683926406465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26269672.

The product of its (nonzero) digits is 44789760, while the sum is 59.

The spelling of 683926406465 in words is "six hundred eighty-three billion, nine hundred twenty-six million, four hundred six thousand, four hundred sixty-five".