964768488491 has 4 divisors (see below), whose sum is σ = 965736160992. Its totient is φ = 963800815992.

The previous prime is 964768488479. The next prime is 964768488517. The reversal of 964768488491 is 194884867469.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 964768488491 - 2¹⁸ = 964768226347 is a prime.

It is a super-3 number, since 3×964768488491³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964768488421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483834755 + ... + 483836748.

It is an arithmetic number, because the mean of its divisors is an integer number (241434040248).

Almost surely, 2^964768488491 is an apocalyptic number.

964768488491 is a deficient number, since it is larger than the sum of its proper divisors (967672501).

964768488491 is an equidigital number, since it uses as much as digits as its factorization.

964768488491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967672500.

The product of its digits is 668860416, while the sum is 74.

The spelling of 964768488491 in words is "nine hundred sixty-four billion, seven hundred sixty-eight million, four hundred eighty-eight thousand, four hundred ninety-one".