64694717172241 has 8 divisors (see below), whose sum is σ = 69755276391080. Its totient is φ = 59646164026752.

The previous prime is 64694717172227. The next prime is 64694717172259. The reversal of 64694717172241 is 14227171749646.

64694717172241 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 3649857411600 + 61044859760641 = 1910460^2 + 7813121^2 .

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 64694717172241 - 2¹⁵ = 64694717139473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64694717172241.

It is not an unprimeable number, because it can be changed into a prime (64694717172941) 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, 3001507140 + ... + 3001528693.

It is an arithmetic number, because the mean of its divisors is an integer number (8719409548885).

Almost surely, 2^{64694717172241} is an apocalyptic number.

It is an amenable number.

64694717172241 is a deficient number, since it is larger than the sum of its proper divisors (5060559218839).

64694717172241 is a wasteful number, since it uses less digits than its factorization.

64694717172241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003036675.

The product of its digits is 28449792, while the sum is 61.

The spelling of 64694717172241 in words is "sixty-four trillion, six hundred ninety-four billion, seven hundred seventeen million, one hundred seventy-two thousand, two hundred forty-one".