64810794054554 has 8 divisors (see below), whose sum is σ = 97216225647060. Its totient is φ = 32405385505536.

The previous prime is 64810794054553. The next prime is 64810794054697. The reversal of 64810794054554 is 45545049701846.

It can be written as a sum of positive squares in 2 ways, for example, as 64810147725625 + 646328929 = 8050475^2 + 25423^2 .

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

It is a super-2 number, since 2×64810794054554² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64810794054553) 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, 6430202 + ... + 13075514.

Almost surely, 2^{64810794054554} is an apocalyptic number.

64810794054554 is a deficient number, since it is larger than the sum of its proper divisors (32405431592506).

64810794054554 is a wasteful number, since it uses less digits than its factorization.

64810794054554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11521744.

The product of its (nonzero) digits is 96768000, while the sum is 62.

The spelling of 64810794054554 in words is "sixty-four trillion, eight hundred ten billion, seven hundred ninety-four million, fifty-four thousand, five hundred fifty-four".