1067378761 has 2 divisors, whose sum is σ = 1067378762. Its totient is φ = 1067378760.

The previous prime is 1067378731. The next prime is 1067378773. The reversal of 1067378761 is 1678737601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 852932025 + 214446736 = 29205^2 + 14644^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067378761 - 2⁷ = 1067378633 is a prime.

It is a super-2 number, since 2×1067378761² = 2278594838867790242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1067378731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533689380 + 533689381.

It is an arithmetic number, because the mean of its divisors is an integer number (533689381).

Almost surely, 2^1067378761 is an apocalyptic number.

It is an amenable number.

1067378761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067378761 is an equidigital number, since it uses as much as digits as its factorization.

1067378761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 1067378761 is about 32670.7630917920. The cubic root of 1067378761 is about 1021.9732278658.

The spelling of 1067378761 in words is "one billion, sixty-seven million, three hundred seventy-eight thousand, seven hundred sixty-one".