64236829654321 has 8 divisors (see below), whose sum is σ = 64755176371200. Its totient is φ = 63719285955600.

The previous prime is 64236829654307. The next prime is 64236829654343. The reversal of 64236829654321 is 12345692863246.

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 64236829654321 - 2⁹ = 64236829653809 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 64236829654321.

It is not an unprimeable number, because it can be changed into a prime (64236859654321) 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, 200593906 + ... + 200913883.

It is an arithmetic number, because the mean of its divisors is an integer number (8094397046400).

Almost surely, 2^{64236829654321} is an apocalyptic number.

It is an amenable number.

64236829654321 is a deficient number, since it is larger than the sum of its proper divisors (518346716879).

64236829654321 is a wasteful number, since it uses less digits than its factorization.

64236829654321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401509079.

The product of its digits is 89579520, while the sum is 61.

The spelling of 64236829654321 in words is "sixty-four trillion, two hundred thirty-six billion, eight hundred twenty-nine million, six hundred fifty-four thousand, three hundred twenty-one".