64345357441 has 8 divisors (see below), whose sum is σ = 66570273000. Its totient is φ = 62120849280.

The previous prime is 64345357429. The next prime is 64345357463. The reversal of 64345357441 is 14475354346.

64345357441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 45224275600 + 19121081841 = 212660^2 + 138279^2 .

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 64345357441 - 2¹⁹ = 64344833153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64345357391 and 64345357400.

It is not an unprimeable number, because it can be changed into a prime (64345357481) 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, 238861 + ... + 430981.

It is an arithmetic number, because the mean of its divisors is an integer number (8321284125).

Almost surely, 2^64345357441 is an apocalyptic number.

It is an amenable number.

64345357441 is a deficient number, since it is larger than the sum of its proper divisors (2224915559).

64345357441 is a wasteful number, since it uses less digits than its factorization.

64345357441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203699.

The product of its digits is 2419200, while the sum is 46.

The spelling of 64345357441 in words is "sixty-four billion, three hundred forty-five million, three hundred fifty-seven thousand, four hundred forty-one".