1763265009661 has 2 divisors, whose sum is σ = 1763265009662. Its totient is φ = 1763265009660.

The previous prime is 1763265009641. The next prime is 1763265009707. The reversal of 1763265009661 is 1669005623671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1127856744036 + 635408265625 = 1062006^2 + 797125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1763265009661 - 2⁵ = 1763265009629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1763265009599 and 1763265009608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1763265009631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 881632504830 + 881632504831.

It is an arithmetic number, because the mean of its divisors is an integer number (881632504831).

Almost surely, 2^{1763265009661} is an apocalyptic number.

It is an amenable number.

1763265009661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1763265009661 is an equidigital number, since it uses as much as digits as its factorization.

1763265009661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 1763265009661 in words is "one trillion, seven hundred sixty-three billion, two hundred sixty-five million, nine thousand, six hundred sixty-one".