1067956764557 has 2 divisors, whose sum is σ = 1067956764558. Its totient is φ = 1067956764556.

The previous prime is 1067956764527. The next prime is 1067956764643. The reversal of 1067956764557 is 7554676597601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056987553801 + 10969210756 = 1028099^2 + 104734^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067956764557 - 2¹⁶ = 1067956699021 is a prime.

It is a super-2 number, since 2×1067956764557² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1067956764517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533978382278 + 533978382279.

It is an arithmetic number, because the mean of its divisors is an integer number (533978382279).

Almost surely, 2^{1067956764557} is an apocalyptic number.

It is an amenable number.

1067956764557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067956764557 is an equidigital number, since it uses as much as digits as its factorization.

1067956764557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 333396000, while the sum is 68.

The spelling of 1067956764557 in words is "one trillion, sixty-seven billion, nine hundred fifty-six million, seven hundred sixty-four thousand, five hundred fifty-seven".