64063552069 has 4 divisors (see below), whose sum is σ = 69887511360. Its totient is φ = 58239592780.

The previous prime is 64063552013. The next prime is 64063552109. The reversal of 64063552069 is 96025536046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64063552069 - 2⁷ = 64063551941 is a prime.

It is a super-2 number, since 2×64063552069² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64063552769) 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, 2911979629 + ... + 2911979650.

It is an arithmetic number, because the mean of its divisors is an integer number (17471877840).

Almost surely, 2^64063552069 is an apocalyptic number.

It is an amenable number.

64063552069 is a deficient number, since it is larger than the sum of its proper divisors (5823959291).

64063552069 is a wasteful number, since it uses less digits than its factorization.

64063552069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5823959290.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 64063552069 in words is "sixty-four billion, sixty-three million, five hundred fifty-two thousand, sixty-nine".