64071132769 has 8 divisors (see below), whose sum is σ = 75203183168. Its totient is φ = 53433840240.

The previous prime is 64071132757. The next prime is 64071132773. The reversal of 64071132769 is 96723117046.

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 64071132769 - 2⁷ = 64071132641 is a prime.

It is a super-2 number, since 2×64071132769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64071132469) 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, 123689187 + ... + 123689704.

It is an arithmetic number, because the mean of its divisors is an integer number (9400397896).

Almost surely, 2^64071132769 is an apocalyptic number.

It is an amenable number.

64071132769 is a deficient number, since it is larger than the sum of its proper divisors (11132050399).

64071132769 is a wasteful number, since it uses less digits than its factorization.

64071132769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247378935.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 64071132769 in words is "sixty-four billion, seventy-one million, one hundred thirty-two thousand, seven hundred sixty-nine".