10403978617 has 2 divisors, whose sum is σ = 10403978618. Its totient is φ = 10403978616.

The previous prime is 10403978593. The next prime is 10403978659. The reversal of 10403978617 is 71687930401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5842462096 + 4561516521 = 76436^2 + 67539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10403978617 is a prime.

It is a super-3 number, since 3×10403978617³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (10403918617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201989308 + 5201989309.

It is an arithmetic number, because the mean of its divisors is an integer number (5201989309).

Almost surely, 2^10403978617 is an apocalyptic number.

It is an amenable number.

10403978617 is a deficient number, since it is larger than the sum of its proper divisors (1).

10403978617 is an equidigital number, since it uses as much as digits as its factorization.

10403978617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 10403978617 in words is "ten billion, four hundred three million, nine hundred seventy-eight thousand, six hundred seventeen".