1064376978461 has 2 divisors, whose sum is σ = 1064376978462. Its totient is φ = 1064376978460.

The previous prime is 1064376978433. The next prime is 1064376978463. The reversal of 1064376978461 is 1648796734601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560972538361 + 503404440100 = 748981^2 + 709510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064376978461 - 2⁶ = 1064376978397 is a prime.

It is a super-2 number, since 2×1064376978461² (a number of 25 digits) contains 22 as substring.

Together with 1064376978463, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1064376978394 and 1064376978403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064376978463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532188489230 + 532188489231.

It is an arithmetic number, because the mean of its divisors is an integer number (532188489231).

Almost surely, 2^{1064376978461} is an apocalyptic number.

It is an amenable number.

1064376978461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064376978461 is an equidigital number, since it uses as much as digits as its factorization.

1064376978461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 1064376978461 in words is "one trillion, sixty-four billion, three hundred seventy-six million, nine hundred seventy-eight thousand, four hundred sixty-one".