64195323037971 has 8 divisors (see below), whose sum is σ = 85598522239440. Its totient is φ = 42794502930912.

The previous prime is 64195323037969. The next prime is 64195323037997. The reversal of 64195323037971 is 17973032359146.

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

It is not a de Polignac number, because 64195323037971 - 2¹ = 64195323037969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64195323037771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594710640 + ... + 594818573.

It is an arithmetic number, because the mean of its divisors is an integer number (10699815279930).

Almost surely, 2^{64195323037971} is an apocalyptic number.

64195323037971 is a deficient number, since it is larger than the sum of its proper divisors (21403199201469).

64195323037971 is a wasteful number, since it uses less digits than its factorization.

64195323037971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189547205.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 64195323037971 in words is "sixty-four trillion, one hundred ninety-five billion, three hundred twenty-three million, thirty-seven thousand, nine hundred seventy-one".