1064951861641 has 2 divisors, whose sum is σ = 1064951861642. Its totient is φ = 1064951861640.

The previous prime is 1064951861621. The next prime is 1064951861647. The reversal of 1064951861641 is 1461681594601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1063775646025 + 1176215616 = 1031395^2 + 34296^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064951861641 - 2¹⁷ = 1064951730569 is a prime.

It is a super-2 number, since 2×1064951861641² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1064951861647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532475930820 + 532475930821.

It is an arithmetic number, because the mean of its divisors is an integer number (532475930821).

Almost surely, 2^{1064951861641} is an apocalyptic number.

It is an amenable number.

1064951861641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064951861641 is an equidigital number, since it uses as much as digits as its factorization.

1064951861641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 1064951861641 in words is "one trillion, sixty-four billion, nine hundred fifty-one million, eight hundred sixty-one thousand, six hundred forty-one".