900455717717 has 2 divisors, whose sum is σ = 900455717718. Its totient is φ = 900455717716.

The previous prime is 900455717699. The next prime is 900455717803. The reversal of 900455717717 is 717717554009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 900390334321 + 65383396 = 948889^2 + 8086^2 .

It is a cyclic number.

It is not a de Polignac number, because 900455717717 - 2⁶ = 900455717653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900455717417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450227858858 + 450227858859.

It is an arithmetic number, because the mean of its divisors is an integer number (450227858859).

Almost surely, 2^900455717717 is an apocalyptic number.

It is an amenable number.

900455717717 is a deficient number, since it is larger than the sum of its proper divisors (1).

900455717717 is an equidigital number, since it uses as much as digits as its factorization.

900455717717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160900, while the sum is 53.

The spelling of 900455717717 in words is "nine hundred billion, four hundred fifty-five million, seven hundred seventeen thousand, seven hundred seventeen".