64392069849169 has 8 divisors (see below), whose sum is σ = 71768251225440. Its totient is φ = 57414600979776.

The previous prime is 64392069849167. The next prime is 64392069849241. The reversal of 64392069849169 is 96194896029346.

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 64392069849169 - 2¹ = 64392069849167 is a prime.

It is a super-2 number, since 2×64392069849169² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64392069849095 and 64392069849104.

It is not an unprimeable number, because it can be changed into a prime (64392069849167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99678126379 + ... + 99678127024.

It is an arithmetic number, because the mean of its divisors is an integer number (8971031403180).

Almost surely, 2^{64392069849169} is an apocalyptic number.

It is an amenable number.

64392069849169 is a deficient number, since it is larger than the sum of its proper divisors (7376181376271).

64392069849169 is a wasteful number, since it uses less digits than its factorization.

64392069849169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199356253439.

The product of its (nonzero) digits is 1088391168, while the sum is 76.

The spelling of 64392069849169 in words is "sixty-four trillion, three hundred ninety-two billion, sixty-nine million, eight hundred forty-nine thousand, one hundred sixty-nine".