64854295312273 has 4 divisors (see below), whose sum is σ = 64873695344128. Its totient is φ = 64834895280420.

The previous prime is 64854295312271. The next prime is 64854295312307. The reversal of 64854295312273 is 37221359245846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64854295312273 - 2¹ = 64854295312271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64854295312271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9700010913 + ... + 9700017598.

It is an arithmetic number, because the mean of its divisors is an integer number (16218423836032).

Almost surely, 2^{64854295312273} is an apocalyptic number.

It is an amenable number.

64854295312273 is a deficient number, since it is larger than the sum of its proper divisors (19400031855).

64854295312273 is a wasteful number, since it uses less digits than its factorization.

64854295312273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19400031854.

The product of its digits is 87091200, while the sum is 61.

The spelling of 64854295312273 in words is "sixty-four trillion, eight hundred fifty-four billion, two hundred ninety-five million, three hundred twelve thousand, two hundred seventy-three".