1964110856429 has 2 divisors, whose sum is σ = 1964110856430. Its totient is φ = 1964110856428.

The previous prime is 1964110856333. The next prime is 1964110856431. The reversal of 1964110856429 is 9246580114691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1643639382025 + 320471474404 = 1282045^2 + 566102^2 .

It is an emirp because it is prime and its reverse (9246580114691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1964110856429 - 2²⁸ = 1963842420973 is a prime.

Together with 1964110856431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1964110856479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982055428214 + 982055428215.

It is an arithmetic number, because the mean of its divisors is an integer number (982055428215).

Almost surely, 2^{1964110856429} is an apocalyptic number.

It is an amenable number.

1964110856429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964110856429 is an equidigital number, since it uses as much as digits as its factorization.

1964110856429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 1964110856429 in words is "one trillion, nine hundred sixty-four billion, one hundred ten million, eight hundred fifty-six thousand, four hundred twenty-nine".