1964297447423 has 8 divisors (see below), whose sum is σ = 1969309557600. Its totient is φ = 1959287781888.

The previous prime is 1964297447377. The next prime is 1964297447471. The reversal of 1964297447423 is 3247447924691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1964297447423 - 2¹⁶ = 1964297381887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964297447923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003343 + ... + 2221551.

It is an arithmetic number, because the mean of its divisors is an integer number (246163694700).

Almost surely, 2^{1964297447423} is an apocalyptic number.

1964297447423 is a deficient number, since it is larger than the sum of its proper divisors (5012110177).

1964297447423 is a wasteful number, since it uses less digits than its factorization.

1964297447423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222321.

The product of its digits is 73156608, while the sum is 62.

The spelling of 1964297447423 in words is "one trillion, nine hundred sixty-four billion, two hundred ninety-seven million, four hundred forty-seven thousand, four hundred twenty-three".