10621404752617 has 2 divisors, whose sum is σ = 10621404752618. Its totient is φ = 10621404752616.

The previous prime is 10621404752587. The next prime is 10621404752639. The reversal of 10621404752617 is 71625740412601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9953293053456 + 668111699161 = 3154884^2 + 817381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10621404752617 is a prime.

It is a super-2 number, since 2×10621404752617² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10621404755617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5310702376308 + 5310702376309.

It is an arithmetic number, because the mean of its divisors is an integer number (5310702376309).

Almost surely, 2^{10621404752617} is an apocalyptic number.

It is an amenable number.

10621404752617 is a deficient number, since it is larger than the sum of its proper divisors (1).

10621404752617 is an equidigital number, since it uses as much as digits as its factorization.

10621404752617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 10621404752617 in words is "ten trillion, six hundred twenty-one billion, four hundred four million, seven hundred fifty-two thousand, six hundred seventeen".